diff --git a/src/core/components/tabs-outlet/tabs-outlet.ts b/src/core/components/tabs-outlet/tabs-outlet.ts
index 54da61022..d7575f2fe 100644
--- a/src/core/components/tabs-outlet/tabs-outlet.ts
+++ b/src/core/components/tabs-outlet/tabs-outlet.ts
@@ -62,7 +62,7 @@ export class CoreTabsOutletComponent extends CoreTabsBaseComponent<CoreTabsOutle
     @Input() layout: 'icon-top' | 'icon-start' | 'icon-end' | 'icon-bottom' | 'icon-hide' | 'label-hide' = 'icon-hide';
     @Input() tabs: CoreTabsOutletTab[] = [];
 
-    @ViewChild(IonTabs) protected ionTabs?: IonTabs;
+    @ViewChild(IonTabs) protected ionTabs!: IonTabs;
 
     protected stackEventsSubscription?: Subscription;
     protected outletActivatedSubscription?: Subscription;
@@ -96,11 +96,17 @@ export class CoreTabsOutletComponent extends CoreTabsBaseComponent<CoreTabsOutle
         }
 
         this.tabsElement = this.element.nativeElement.querySelector('ion-tabs');
-        this.stackEventsSubscription = this.ionTabs?.outlet.stackEvents.subscribe(async (stackEvent: StackEvent) => {
+        this.stackEventsSubscription = this.ionTabs.outlet.stackEvents.subscribe(async (stackEvent: StackEvent) => {
             if (!this.isCurrentView) {
                 return;
             }
 
+            // Add tabid to the tab content element.
+            if (stackEvent.enteringView.element.id == '') {
+                const tab = this.tabs.find((tab) => tab.page == stackEvent.enteringView.url);
+                stackEvent.enteringView.element.id = tab?.id || '';
+            }
+
             this.showHideNavBarButtons(stackEvent.enteringView.element.tagName);
 
             await this.listenContentScroll(stackEvent.enteringView.element, stackEvent.enteringView.id);
@@ -111,8 +117,8 @@ export class CoreTabsOutletComponent extends CoreTabsBaseComponent<CoreTabsOutle
                 this.showHideTabs(scrollElement.scrollTop, scrollElement);
             }
         });
-        this.outletActivatedSubscription = this.ionTabs?.outlet.activateEvents.subscribe(() => {
-            this.lastActiveComponent = this.ionTabs?.outlet.component;
+        this.outletActivatedSubscription = this.ionTabs.outlet.activateEvents.subscribe(() => {
+            this.lastActiveComponent = this.ionTabs.outlet.component;
         });
     }
 
@@ -140,8 +146,8 @@ export class CoreTabsOutletComponent extends CoreTabsBaseComponent<CoreTabsOutle
         // The `ionViewDidEnter` method is not called on nested outlets unless the parent page is leaving the navigation stack,
         // that's why we need to call it manually if the page that is entering already existed in the stack (meaning that it is
         // entering in response to a back navigation from the page on top).
-        if (this.existsInNavigationStack && this.ionTabs?.outlet.isActivated) {
-            (this.ionTabs?.outlet.component as Partial<ViewDidEnter>).ionViewDidEnter?.();
+        if (this.existsInNavigationStack && this.ionTabs.outlet.isActivated) {
+            (this.ionTabs.outlet.component as Partial<ViewDidEnter>).ionViewDidEnter?.();
         }
 
         // After the view has entered for the first time, we can assume that it'll always be in the navigation stack
@@ -180,10 +186,9 @@ export class CoreTabsOutletComponent extends CoreTabsBaseComponent<CoreTabsOutle
      * @param activatedPageName Activated page name.
      */
     protected showHideNavBarButtons(activatedPageName: string): void {
-        const elements = this.ionTabs!.outlet.nativeEl.querySelectorAll('core-navbar-buttons');
-        const domUtils = CoreDomUtils.instance;
+        const elements = this.ionTabs.outlet.nativeEl.querySelectorAll('core-navbar-buttons');
         elements.forEach((element) => {
-            const instance = domUtils.getInstanceByElement<CoreNavBarButtonsComponent>(element);
+            const instance = CoreDomUtils.getInstanceByElement<CoreNavBarButtonsComponent>(element);
 
             if (instance) {
                 const pagetagName = element.closest('.ion-page')?.tagName;
diff --git a/src/core/directives/collapsible-header.ts b/src/core/directives/collapsible-header.ts
index 24ba81a03..e0927de10 100644
--- a/src/core/directives/collapsible-header.ts
+++ b/src/core/directives/collapsible-header.ts
@@ -43,6 +43,10 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
     protected headerSubHeadingFontSize = 0;
     protected contentSubHeadingFontSize = 0;
     protected subHeadingStartDifference = 0;
+    protected inContent = true;
+    protected title?: HTMLElement | null;
+    protected titleHeight = 0;
+    protected contentH1?: HTMLElement | null;
 
     constructor(el: ElementRef<HTMLIonHeaderElement>) {
         this.header = el.nativeElement;
@@ -67,8 +71,6 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
     /**
      * Gets the loading content id to wait for the loading to finish.
      *
-     * @TODO: If no core-loading is present, load directly. Take into account content needs to be initialized.
-     *
      * @return Promise resolved with Loading Id, if any.
      */
     protected async getLoadingId(): Promise<string | undefined> {
@@ -80,6 +82,17 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
 
                 return;
             }
+
+            const title = this.header.parentElement?.querySelector('.collapsible-title') || null;
+
+            if (title) {
+                // Title already found, no need to wait for loading.
+                this.loadingObserver.off();
+                this.setupRealTitle();
+
+                return;
+            }
+
         }
 
         return this.content.querySelector('core-loading.core-loading-loaded:not(.core-loading-inline) .core-loading-content')?.id;
@@ -89,6 +102,7 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
      * Call this function when header is not collapsible.
      */
     protected cannotCollapse(): void {
+        this.content = undefined;
         this.loadingObserver.off();
         this.header.classList.add('core-header-collapsed');
     }
@@ -112,16 +126,25 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
             await animation.finished;
         }));
 
-        const title = this.content.querySelector<HTMLElement>('.collapsible-title, h1');
-        const contentH1 = this.content.querySelector<HTMLElement>('h1');
+        let title = this.content.querySelector<HTMLElement>('.collapsible-title');
+        if (!title) {
+            // Title is outside the ion-content.
+            title = this.header.parentElement?.querySelector('.collapsible-title') || null;
+            this.inContent = false;
+        }
+        this.contentH1 = title?.querySelector<HTMLElement>('h1');
         const headerH1 = this.header.querySelector<HTMLElement>('h1');
-        if (!title || !contentH1 || !headerH1) {
+        if (!title || !this.contentH1 || !headerH1 || !this.contentH1.parentElement) {
             this.cannotCollapse();
 
             return;
         }
 
-        this.titleTopDifference = contentH1.getBoundingClientRect().top - headerH1.getBoundingClientRect().top;
+        this.title = title;
+        this.titleHeight = title.getBoundingClientRect().height;
+
+        this.titleTopDifference = this.contentH1.getBoundingClientRect().top - headerH1.getBoundingClientRect().top;
+
         if (this.titleTopDifference <= 0) {
             this.cannotCollapse();
 
@@ -141,17 +164,17 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
         }
 
         const headerH1Styles = getComputedStyle(headerH1);
-        const contentH1Styles = getComputedStyle(contentH1);
+        const contentH1Styles = getComputedStyle(this.contentH1);
 
         if (Platform.isRTL) {
             // Checking position over parent because transition may not be finished.
-            const contentH1Position = contentH1.getBoundingClientRect().right - this.content.getBoundingClientRect().right;
+            const contentH1Position = this.contentH1.getBoundingClientRect().right - this.content.getBoundingClientRect().right;
             const headerH1Position = headerH1.getBoundingClientRect().right - this.header.getBoundingClientRect().right;
 
             this.h1StartDifference = Math.round(contentH1Position - (headerH1Position - parseFloat(headerH1Styles.paddingRight)));
         } else {
             // Checking position over parent because transition may not be finished.
-            const contentH1Position = contentH1.getBoundingClientRect().left - this.content.getBoundingClientRect().left;
+            const contentH1Position = this.contentH1.getBoundingClientRect().left - this.content.getBoundingClientRect().left;
             const headerH1Position = headerH1.getBoundingClientRect().left - this.header.getBoundingClientRect().left;
 
             this.h1StartDifference = Math.round(contentH1Position - (headerH1Position + parseFloat(headerH1Styles.paddingLeft)));
@@ -165,10 +188,10 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
             if (styleName != 'font-size' &&
                 styleName != 'font-family' &&
                 (styleName.startsWith('font-') || styleName.startsWith('letter-'))) {
-                contentH1.style.setProperty(styleName, headerH1Styles.getPropertyValue(styleName));
+                this.contentH1?.style.setProperty(styleName, headerH1Styles.getPropertyValue(styleName));
             }
         });
-        contentH1.style.setProperty(
+        this.contentH1.style.setProperty(
             '--max-width',
             (parseFloat(headerH1Styles.width)
                 -parseFloat(headerH1Styles.paddingLeft)
@@ -176,47 +199,70 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
                 +'px'),
         );
 
-        contentH1.setAttribute('aria-hidden', 'true');
+        this.contentH1.setAttribute('aria-hidden', 'true');
+
+        // Clone element to let the other elements be static.
+        const contentH1Clone = this.contentH1.cloneNode(true) as HTMLElement;
+        contentH1Clone.classList.add('cloned');
+        this.contentH1.parentElement.insertBefore(contentH1Clone, this.contentH1);
+        this.contentH1.style.setProperty(
+            'top',
+            (contentH1Clone.getBoundingClientRect().top -
+            this.contentH1.parentElement.getBoundingClientRect().top +
+            parseInt(getComputedStyle(this.contentH1.parentElement).marginTop || '0', 10)) + 'px',
+        );
+        this.contentH1.style.setProperty('position', 'absolute');
+
+        this.setupContent();
+    }
+
+    /**
+     * Setup content scroll.
+     *
+     * @param parentId Parent id to recalculate content
+     * @param retries  Retries to find content in case it's loading.
+     */
+    async setupContent(parentId?: string, retries = 5): Promise<void> {
+        if (parentId) {
+            this.content = this.header.parentElement?.querySelector(`#${parentId} ion-content:not(.disable-scroll-y)`);
+            this.inContent = false;
+            if (!this.content && retries > 0) {
+                await CoreUtils.nextTick();
+                await this.setupContent(parentId, --retries);
+
+                return;
+            }
+
+            this.onScroll(this.content?.scrollTop || 0);
+        }
+
+        if (!this.title || !this.content) {
+            return;
+        }
 
         // Add something under the hood to change the page background.
-        let color = getComputedStyle(title).getPropertyValue('backgroundColor').trim();
+        let color = getComputedStyle(this.title).getPropertyValue('backgroundColor').trim();
         if (color == '') {
-            color = getComputedStyle(title).getPropertyValue('--background').trim();
+            color = getComputedStyle(this.title).getPropertyValue('--background').trim();
         }
 
         const underHeader = document.createElement('div');
         underHeader.classList.add('core-underheader');
         underHeader.style.setProperty('height', this.header.clientHeight + 'px');
         underHeader.style.setProperty('background', color);
-        this.content.shadowRoot?.querySelector('#background-content')?.prepend(underHeader);
-
-        this.content.style.setProperty('--offset-top', this.header.clientHeight + 'px');
-
-        // Subheading.
-        const headerSubHeading = this.header.querySelector<HTMLElement>('h2,.subheading');
-        const contentSubHeading = title.querySelector<HTMLElement>('h2,.subheading');
-        if (headerSubHeading && contentSubHeading) {
-            const headerSubHeadingStyles = getComputedStyle(headerSubHeading);
-            this.headerSubHeadingFontSize = parseFloat(headerSubHeadingStyles.fontSize);
-
-            const contentSubHeadingStyles = getComputedStyle(contentSubHeading);
-            this.contentSubHeadingFontSize = parseFloat(contentSubHeadingStyles.fontSize);
-
-            if (Platform.isRTL) {
-                this.subHeadingStartDifference = contentSubHeading.getBoundingClientRect().right -
-                    (headerSubHeading.getBoundingClientRect().right - parseFloat(headerSubHeadingStyles.paddingRight));
-            } else {
-                this.subHeadingStartDifference = contentSubHeading.getBoundingClientRect().left -
-                    (headerSubHeading.getBoundingClientRect().left + parseFloat(headerSubHeadingStyles.paddingLeft));
+        if (this.inContent) {
+            this.content.shadowRoot?.querySelector('#background-content')?.prepend(underHeader);
+            this.content.style.setProperty('--offset-top', this.header.clientHeight + 'px');
+        } else {
+            if (!this.header.closest('.ion-page')?.querySelector('.core-underheader')) {
+                this.header.closest('.ion-page')?.insertBefore(underHeader, this.header);
             }
-
-            contentSubHeading.setAttribute('aria-hidden', 'true');
         }
 
         this.content.scrollEvents = true;
         this.content.addEventListener('ionScroll', (e: CustomEvent<ScrollDetail>): void => {
             if (e.target == this.content) {
-                this.onScroll(title, contentH1, contentSubHeading, e.detail);
+                this.onScroll(e.detail.scrollTop);
             }
         });
     }
@@ -224,54 +270,45 @@ export class CoreCollapsibleHeaderDirective implements OnDestroy {
     /**
      * On scroll function.
      *
-     * @param title Title on ion content.
-     * @param contentH1 Heading 1 of title, if found.
-     * @param scrollDetail Event details.
+     * @param scrollTop Scroll top measure.
      */
     protected onScroll(
-        title: HTMLElement,
-        contentH1: HTMLElement,
-        contentSubheading: HTMLElement | null,
-        scrollDetail: ScrollDetail,
+        scrollTop: number,
     ): void {
-        const progress = CoreMath.clamp(scrollDetail.scrollTop / this.titleTopDifference, 0, 1);
+        if (!this.title || !this.contentH1) {
+            return;
+        }
+
+        const progress = CoreMath.clamp(scrollTop / this.titleTopDifference, 0, 1);
         const collapsed = progress >= 1;
 
+        if (!this.inContent) {
+            this.title.style.transform = 'translateY(-' + scrollTop + 'px)';
+            const height = this.titleHeight - scrollTop;
+            this.title.style.height = (height > 0 ? height : 0) + 'px';
+        }
+
         // Check total collapse.
         this.header.classList.toggle('core-header-collapsed', collapsed);
-        title.classList.toggle('collapsible-title-collapsed', collapsed);
-        title.classList.toggle('collapsible-title-collapse-started', scrollDetail.scrollTop > 0);
-        title.classList.toggle('collapsible-title-collapse-nowrap', progress > 0.5);
-        title.style.setProperty('--collapse-opacity', (1 - progress) +'');
+        this.title.classList.toggle('collapsible-title-collapsed', collapsed);
+        this.title.classList.toggle('collapsible-title-collapse-started', scrollTop > 0);
+        this.title.classList.toggle('collapsible-title-collapse-nowrap', progress > 0.5);
+        this.title.style.setProperty('--collapse-opacity', (1 - progress) +'');
 
         if (collapsed) {
-            contentH1.style.transform = 'translateX(-' + this.h1StartDifference + 'px)';
-            contentH1.style.setProperty('font-size', this.headerH1FontSize + 'px');
-
-            if (contentSubheading) {
-                contentSubheading.style.transform = 'translateX(-' + this.subHeadingStartDifference + 'px)';
-                contentSubheading.style.setProperty('font-size', this.headerSubHeadingFontSize + 'px');
-            }
+            this.contentH1.style.transform = 'translateX(-' + this.h1StartDifference + 'px)';
+            this.contentH1.style.setProperty('font-size', this.headerH1FontSize + 'px');
 
             return;
         }
 
         // Zoom font-size out.
         const newFontSize = this.contentH1FontSize - ((this.contentH1FontSize - this.headerH1FontSize) * progress);
-        contentH1.style.setProperty('font-size', newFontSize + 'px');
+        this.contentH1.style.setProperty('font-size', newFontSize + 'px');
 
         // Move.
         const newStart = - this.h1StartDifference * progress;
-        contentH1.style.transform = 'translateX(' + newStart + 'px)';
-
-        if (contentSubheading) {
-            const newFontSize = this.contentSubHeadingFontSize -
-                ((this.contentSubHeadingFontSize - this.headerSubHeadingFontSize) * progress);
-            contentSubheading.style.setProperty('font-size', newFontSize + 'px');
-
-            const newStart = - this.subHeadingStartDifference * progress;
-            contentSubheading.style.transform = 'translateX(' + newStart + 'px)';
-        }
+        this.contentH1.style.transform = 'translateX(' + newStart + 'px)';
     }
 
     /**
diff --git a/src/core/features/block/components/side-blocks-button/side-blocks-button.scss b/src/core/features/block/components/side-blocks-button/side-blocks-button.scss
index 579196d50..76b104a1a 100644
--- a/src/core/features/block/components/side-blocks-button/side-blocks-button.scss
+++ b/src/core/features/block/components/side-blocks-button/side-blocks-button.scss
@@ -4,6 +4,7 @@
     @include position(50%, 0px, null, null);
     position: fixed;
     z-index: 10;
+    transform: translateY(-50%);
 
     ion-button {
         margin: 0;
diff --git a/src/core/features/course/components/format/core-course-format.html b/src/core/features/course/components/format/core-course-format.html
index 9ecb91ece..3249dad88 100644
--- a/src/core/features/course/components/format/core-course-format.html
+++ b/src/core/features/course/components/format/core-course-format.html
@@ -10,30 +10,6 @@
     <!-- Default course format. -->
     <core-loading [hideUntil]="loaded">
 
-        <!-- Course summary. By default we only display the course progress. -->
-        <core-dynamic-component [component]="courseSummaryComponent" [data]="data">
-            <ion-item lines="full" class="core-format-progress-list ion-text-wrap">
-                <ion-avatar slot="start" class="core-course-thumb" *ngIf="imageThumb">
-                    <img [src]="imageThumb" core-external-content alt="" />
-                </ion-avatar>
-                <ion-label>
-                    <p *ngIf="course.categoryname">
-                        <core-format-text [text]="course.categoryname" contextLevel="coursecat" [contextInstanceId]="course.categoryid">
-                        </core-format-text>
-                    </p>
-                    <p class="item-heading">{{ course.displayname || course.fullname }}</p>
-                    <div class="core-course-progress" *ngIf="progress !== undefined">
-                        <core-progress-bar [progress]="progress" a11yText="core.course.aria:sectionprogress">
-                        </core-progress-bar>
-                    </div>
-                </ion-label>
-                <ion-button fill="clear" slot="end" (click)="openCourseSummary()" [attr.aria-label]="'core.course.coursesummary' |translate"
-                    color="dark">
-                    <ion-icon name="fas-info-circle" slot="icon-only" aria-hidden="true"></ion-icon>
-                </ion-button>
-            </ion-item>
-        </core-dynamic-component>
-
         <!-- Single section. -->
         <div *ngIf="selectedSection && selectedSection.id != allSectionsId">
             <core-dynamic-component [component]="singleSectionComponent" [data]="data">
@@ -72,15 +48,15 @@
                 <ion-icon name="fas-chevron-right" slot="icon-only" aria-hidden="true"></ion-icon>
             </ion-button>
         </ion-buttons>
-
-        <core-block-side-blocks-button *ngIf="course && displayBlocks && hasBlocks" [courseId]="course.id">
-        </core-block-side-blocks-button>
-
     </core-loading>
 </core-dynamic-component>
 
+
+<core-block-side-blocks-button slot="fixed" *ngIf="loaded && course && displayBlocks && hasBlocks" [courseId]="course.id">
+</core-block-side-blocks-button>
+
 <!-- Course Index button. -->
-<ion-fab slot="fixed" core-fab vertical="bottom" horizontal="end" *ngIf="displayCourseIndex">
+<ion-fab slot="fixed" core-fab vertical="bottom" horizontal="end" *ngIf="loaded && displayCourseIndex">
     <ion-fab-button (click)="openCourseIndex()" [attr.aria-label]="'core.course.courseindex' | translate">
         <ion-icon name="fas-list-ul" aria-hidden="true"></ion-icon>
         <span class="sr-only">{{'core.course.courseindex' | translate }}</span>
@@ -121,8 +97,7 @@
 
         <ng-container *ngFor="let module of section.modules">
             <core-course-module *ngIf="module.visibleoncoursepage !== 0" [module]="module" [section]="section"
-                (completionChanged)="onCompletionChange($event)" [showActivityDates]="course.showactivitydates"
-                [showCompletionConditions]="course.showcompletionconditions">
+                [showActivityDates]="course.showactivitydates" [showCompletionConditions]="course.showcompletionconditions">
             </core-course-module>
         </ng-container>
     </section>
diff --git a/src/core/features/course/components/format/format.scss b/src/core/features/course/components/format/format.scss
index 25f43001b..f6444fb72 100644
--- a/src/core/features/course/components/format/format.scss
+++ b/src/core/features/course/components/format/format.scss
@@ -1,55 +1,11 @@
-@import '~theme/globals.scss';
+.core-course-section-nav-buttons {
+    display: flex;
+    justify-content: flex-end;
 
-:host {
-
-    .core-format-progress-list {
-        margin-bottom: 0;
-
-        .item {
-            background: transparent;
-
-            .label {
-                margin-top: 0;
-                margin-bottom: 0;
-            }
-        }
+    core-format-text {
+        white-space: nowrap;
+        text-overflow: ellipsis;
+        overflow: hidden;
+        text-transform: none;
     }
-
-    .core-course-thumb {
-        height: var(--core-courseimage-on-course-size);
-        width: var(--core-courseimage-on-course-size);
-    }
-
-    @if ($core-show-courseimage-on-course) {
-        .core-course-thumb {
-            display: block;
-        }
-    }
-
-    @if ($core-hide-progress-on-course) {
-        .core-course-progress {
-            display: none;
-        }
-    }
-
-
-    .core-button-selector-row {
-        display: flex;
-        core-combobox {
-            flex-grow: 1;
-        }
-    }
-
-    .core-course-section-nav-buttons {
-        display: flex;
-        justify-content: flex-end;
-
-        core-format-text {
-            white-space: nowrap;
-            text-overflow: ellipsis;
-            overflow: hidden;
-            text-transform: none;
-        }
-    }
-
 }
diff --git a/src/core/features/course/components/format/format.ts b/src/core/features/course/components/format/format.ts
index e7efb6bc4..1cdc25197 100644
--- a/src/core/features/course/components/format/format.ts
+++ b/src/core/features/course/components/format/format.ts
@@ -68,7 +68,7 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
     static readonly LOAD_MORE_ACTIVITIES = 20; // How many activities should load each time showMoreActivities is called.
 
     @Input() course!: CoreCourseAnyCourseData; // The course to render.
-    @Input() sections?: CoreCourseSection[]; // List of course sections.
+    @Input() sections: CoreCourseSectionWithStatus[] = []; // List of course sections.
     @Input() initialSectionId?: number; // The section to load first (by ID).
     @Input() initialSectionNumber?: number; // The section to load first (by number).
     @Input() moduleId?: number; // The module ID to scroll to. Must be inside the initial selected section.
@@ -95,10 +95,10 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
     allSectionsId: number = CoreCourseProvider.ALL_SECTIONS_ID;
     stealthModulesSectionId: number = CoreCourseProvider.STEALTH_MODULES_SECTION_ID;
     loaded = false;
-    imageThumb?: string;
     progress?: number;
 
     protected selectTabObserver?: CoreEventObserver;
+    protected completionObserver?: CoreEventObserver;
     protected lastCourseFormat?: string;
 
     constructor(
@@ -139,6 +139,37 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
                 this.sectionChanged(section);
             }
         });
+
+        // The completion of any of the modules have changed.
+        this.completionObserver = CoreEvents.on(CoreEvents.COMPLETION_CHANGED, (data) => {
+            if (data.completion.courseId != this.course.id) {
+                return;
+            }
+
+            // Emit a new event for other components.
+            this.completionChanged.emit(data.completion);
+
+            if (data.completion.valueused !== false || !this.course || !('progress' in this.course) ||
+                    typeof this.course.progress != 'number') {
+                return;
+            }
+
+            // If the completion value is not used, the page won't be reloaded, so update the progress bar.
+            const completionModules = (<CoreCourseModuleData[]> [])
+                .concat(...this.sections.map((section) => section.modules))
+                .map((module) => module.completion && module.completion > 0 ? 1 : module.completion)
+                .reduce((accumulator, currentValue) => (accumulator || 0) + (currentValue || 0), 0);
+
+            const moduleProgressPercent = 100 / (completionModules || 1);
+            // Use min/max here to avoid floating point rounding errors over/under-flowing the progress bar.
+            if (data.completion.state === CoreCourseModuleCompletionStatus.COMPLETION_COMPLETE) {
+                this.course.progress = Math.min(100, this.course.progress + moduleProgressPercent);
+            } else {
+                this.course.progress = Math.max(0, this.course.progress - moduleProgressPercent);
+            }
+
+            this.updateProgress();
+        });
     }
 
     /**
@@ -157,10 +188,6 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
             this.hasBlocks = await CoreBlockHelper.hasCourseBlocks(this.course.id);
 
             this.updateProgress();
-
-            if ('overviewfiles' in this.course) {
-                this.imageThumb = this.course.overviewfiles?.[0]?.fileurl;
-            }
         }
 
         if (changes.sections && this.sections) {
@@ -246,8 +273,9 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
         const hasSeveralSections = sections.length > 2 || (sections.length == 2 && !hasAllSections);
 
         if (this.selectedSection) {
+            const selectedSection = this.selectedSection;
             // We have a selected section, but the list has changed. Search the section in the list.
-            let newSection = sections.find(section => this.compareSections(section, this.selectedSection!));
+            let newSection = sections.find(section => this.compareSections(section, selectedSection));
 
             if (!newSection) {
                 // Section not found, calculate which one to use.
@@ -317,22 +345,22 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
 
         if (newSection.id != this.allSectionsId) {
             // Select next and previous sections to show the arrows.
-            const i = this.sections!.findIndex((value) => this.compareSections(value, this.selectedSection!));
+            const i = this.sections.findIndex((value) => this.compareSections(value, newSection));
 
             let j: number;
             for (j = i - 1; j >= 1; j--) {
-                if (this.canViewSection(this.sections![j])) {
+                if (this.canViewSection(this.sections[j])) {
                     break;
                 }
             }
-            this.previousSection = j >= 1 ? this.sections![j] : undefined;
+            this.previousSection = j >= 1 ? this.sections[j] : undefined;
 
-            for (j = i + 1; j < this.sections!.length; j++) {
-                if (this.canViewSection(this.sections![j])) {
+            for (j = i + 1; j < this.sections.length; j++) {
+                if (this.canViewSection(this.sections[j])) {
                     break;
                 }
             }
-            this.nextSection = j < this.sections!.length ? this.sections![j] : undefined;
+            this.nextSection = j < this.sections.length ? this.sections[j] : undefined;
         } else {
             this.previousSection = undefined;
             this.nextSection = undefined;
@@ -463,7 +491,7 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
     }
 
     /**
-     * Component destroyed.
+     * @inheritdoc
      */
     ngOnDestroy(): void {
         this.selectTabObserver && this.selectTabObserver.off();
@@ -498,35 +526,6 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
                 section.id != CoreCourseProvider.STEALTH_MODULES_SECTION_ID;
     }
 
-    /**
-     * The completion of any of the modules have changed.
-     */
-    onCompletionChange(completionData: CoreCourseModuleCompletionData): void {
-        // Emit a new event for other components.
-        this.completionChanged.emit(completionData);
-
-        if (completionData.valueused !== false || !this.course || !('progress' in this.course) ||
-                typeof this.course.progress != 'number') {
-            return;
-        }
-
-        // If the completion value is not used, the page won't be reloaded, so update the progress bar.
-        const completionModules = (<CoreCourseModuleData[]> [])
-            .concat(...this.sections!.map((section) => section.modules))
-            .map((module) => module.completion && module.completion > 0 ? 1 : module.completion)
-            .reduce((accumulator, currentValue) => (accumulator || 0) + (currentValue || 0), 0);
-
-        const moduleProgressPercent = 100 / (completionModules || 1);
-        // Use min/max here to avoid floating point rounding errors over/under-flowing the progress bar.
-        if (completionData.state === CoreCourseModuleCompletionStatus.COMPLETION_COMPLETE) {
-            this.course.progress = Math.min(100, this.course.progress + moduleProgressPercent);
-        } else {
-            this.course.progress = Math.max(0, this.course.progress - moduleProgressPercent);
-        }
-
-        this.updateProgress();
-    }
-
     /**
      * Update course progress.
      */
@@ -546,14 +545,4 @@ export class CoreCourseFormatComponent implements OnInit, OnChanges, OnDestroy {
         this.progress = this.course.progress;
     }
 
-    /**
-     * Open the course summary
-     */
-    openCourseSummary(): void {
-        CoreNavigator.navigateToSitePath(
-            '/course/' + this.course.id + '/preview',
-            { params: { course: this.course, avoidOpenCourse: true } },
-        );
-    }
-
 }
diff --git a/src/core/features/course/components/module-completion-legacy/module-completion-legacy.ts b/src/core/features/course/components/module-completion-legacy/module-completion-legacy.ts
index 6bf6d2414..023967422 100644
--- a/src/core/features/course/components/module-completion-legacy/module-completion-legacy.ts
+++ b/src/core/features/course/components/module-completion-legacy/module-completion-legacy.ts
@@ -12,14 +12,19 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component } from '@angular/core';
+import { Component, OnDestroy, OnInit } from '@angular/core';
 
 import { CoreUser } from '@features/user/services/user';
-import { CoreCourseModuleCompletionStatus, CoreCourseModuleCompletionTracking } from '@features/course/services/course';
+import {
+    CoreCourseCompletionType,
+    CoreCourseModuleCompletionStatus,
+    CoreCourseModuleCompletionTracking,
+} from '@features/course/services/course';
 import { CoreFilterHelper } from '@features/filter/services/filter-helper';
 import { Translate } from '@singletons';
 import { CoreCourseModuleCompletionBaseComponent } from '@features/course/classes/module-completion';
 import { CoreCourseHelper } from '@features/course/services/course-helper';
+import { CoreEventObserver, CoreEvents } from '@singletons/events';
 
 /**
  * Component to handle activity completion in sites previous to 3.11.
@@ -35,11 +40,29 @@ import { CoreCourseHelper } from '@features/course/services/course-helper';
     templateUrl: 'core-course-module-completion-legacy.html',
     styleUrls: ['module-completion-legacy.scss'],
 })
-export class CoreCourseModuleCompletionLegacyComponent extends CoreCourseModuleCompletionBaseComponent {
+export class CoreCourseModuleCompletionLegacyComponent extends CoreCourseModuleCompletionBaseComponent
+    implements OnInit, OnDestroy {
 
     completionImage?: string;
     completionDescription?: string;
 
+    protected completionObserver?: CoreEventObserver;
+
+    /**
+     * @inheritdoc
+     */
+    ngOnInit(): void {
+        this.completionObserver = CoreEvents.on(CoreEvents.COMPLETION_CHANGED, (data) => {
+            if (!this.completion || this.completion.cmid != data.completion.cmid && data.type != CoreCourseCompletionType.MANUAL) {
+                return;
+            }
+
+            this.completion = data.completion;
+            this.calculateData();
+            this.completionChanged.emit(this.completion);
+        });
+    }
+
     /**
      * @inheritdoc
      */
@@ -126,9 +149,16 @@ export class CoreCourseModuleCompletionLegacyComponent extends CoreCourseModuleC
 
         await CoreCourseHelper.changeManualCompletion(this.completion, event);
 
-        this.calculateData();
+        // @deprecated MANUAL_COMPLETION_CHANGED is deprecated since 4.0 use COMPLETION_CHANGED instead.
+        CoreEvents.trigger(CoreEvents.MANUAL_COMPLETION_CHANGED, { completion: this.completion });
+        CoreEvents.trigger(CoreEvents.COMPLETION_CHANGED, { completion: this.completion, type: CoreCourseCompletionType.MANUAL });
+    }
 
-        this.completionChanged.emit(this.completion);
+    /**
+     * @inheritdoc
+     */
+    ngOnDestroy(): void {
+        this.completionObserver?.off();
     }
 
 }
diff --git a/src/core/features/course/components/module-manual-completion/module-manual-completion.ts b/src/core/features/course/components/module-manual-completion/module-manual-completion.ts
index ede613119..926349adf 100644
--- a/src/core/features/course/components/module-manual-completion/module-manual-completion.ts
+++ b/src/core/features/course/components/module-manual-completion/module-manual-completion.ts
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import { Component, EventEmitter, Input, OnChanges, OnDestroy, OnInit, Output, SimpleChange } from '@angular/core';
+import { CoreCourseCompletionType } from '@features/course/services/course';
 
 import { CoreCourseHelper, CoreCourseModuleCompletionData } from '@features/course/services/course-helper';
 import { CoreUser } from '@features/user/services/user';
@@ -34,14 +35,14 @@ export class CoreCourseModuleManualCompletionComponent implements OnInit, OnChan
 
     accessibleDescription: string | null = null;
 
-    protected manualChangedObserver?: CoreEventObserver;
+    protected completionObserver?: CoreEventObserver;
 
     /**
      * @inheritdoc
      */
     ngOnInit(): void {
-        this.manualChangedObserver = CoreEvents.on(CoreEvents.MANUAL_COMPLETION_CHANGED, (data) => {
-            if (!this.completion || this.completion.cmid != data.completion.cmid) {
+        this.completionObserver = CoreEvents.on(CoreEvents.COMPLETION_CHANGED, (data) => {
+            if (!this.completion || this.completion.cmid != data.completion.cmid && data.type != CoreCourseCompletionType.MANUAL) {
                 return;
             }
 
@@ -98,14 +99,16 @@ export class CoreCourseModuleManualCompletionComponent implements OnInit, OnChan
 
         await CoreCourseHelper.changeManualCompletion(this.completion, event);
 
+        // @deprecated MANUAL_COMPLETION_CHANGED is deprecated since 4.0 use COMPLETION_CHANGED instead.
         CoreEvents.trigger(CoreEvents.MANUAL_COMPLETION_CHANGED, { completion: this.completion });
+        CoreEvents.trigger(CoreEvents.COMPLETION_CHANGED, { completion: this.completion, type: CoreCourseCompletionType.MANUAL });
     }
 
     /**
      * @inheritdoc
      */
     ngOnDestroy(): void {
-        this.manualChangedObserver?.off();
+        this.completionObserver?.off();
     }
 
 }
diff --git a/src/core/features/course/pages/contents/contents.html b/src/core/features/course/pages/contents/contents.html
index 676c330b5..88716c7ea 100644
--- a/src/core/features/course/pages/contents/contents.html
+++ b/src/core/features/course/pages/contents/contents.html
@@ -15,7 +15,8 @@
 
     <core-loading [hideUntil]="dataLoaded">
         <core-course-format [course]="course" [sections]="sections" [initialSectionId]="sectionId" [initialSectionNumber]="sectionNumber"
-            [moduleId]="moduleId" (completionChanged)="onCompletionChange($event)" class="core-course-format-{{course.format}}">
+            [moduleId]="moduleId" (completionChanged)="onCompletionChange($event)" class="core-course-format-{{course.format}}"
+            *ngIf="dataLoaded">
         </core-course-format>
     </core-loading>
 </ion-content>
diff --git a/src/core/features/course/pages/index/index.html b/src/core/features/course/pages/index/index.html
index b1776e63f..8ca38de7f 100644
--- a/src/core/features/course/pages/index/index.html
+++ b/src/core/features/course/pages/index/index.html
@@ -1,4 +1,4 @@
-<ion-header>
+<ion-header collapsible>
     <ion-toolbar>
         <ion-buttons slot="start">
             <ion-back-button [text]="'core.back' | translate"></ion-back-button>
@@ -12,4 +12,31 @@
         <ion-buttons slot="end"></ion-buttons>
     </ion-toolbar>
 </ion-header>
-<core-tabs-outlet [tabs]="tabs" [hideUntil]="loaded" (ionChange)="tabSelected()"></core-tabs-outlet>
+<ion-item lines="full" class="core-format-progress-list ion-text-wrap collapsible-title">
+    <ion-avatar slot="start" class="core-course-thumb" *ngIf="imageThumb">
+        <img [src]="imageThumb" core-external-content alt="" />
+    </ion-avatar>
+    <ion-label>
+        <ion-row>
+            <ion-col>
+                <p *ngIf="category">
+                    <core-format-text [text]="category" contextLevel="coursecat" [contextInstanceId]="course!.categoryid">
+                    </core-format-text>
+                </p>
+                <h1>{{ title }}</h1>
+            </ion-col>
+            <ion-col size="auto" class="ion-align-self-center">
+                <ion-button fill="clear" (click)="openCourseSummary()" [attr.aria-label]="'core.course.coursesummary' | translate"
+                    color="dark">
+                    <ion-icon name="fas-info-circle" slot="icon-only" aria-hidden="true"></ion-icon>
+                </ion-button>
+            </ion-col>
+        </ion-row>
+        <div class="core-course-progress" *ngIf="progress !== undefined">
+            <core-progress-bar [progress]="progress" a11yText="core.course.aria:sectionprogress">
+            </core-progress-bar>
+        </div>
+    </ion-label>
+
+</ion-item>
+<core-tabs-outlet [tabs]="tabs" [hideUntil]="loaded" (ionChange)="tabSelected($event)"></core-tabs-outlet>
diff --git a/src/core/features/course/pages/index/index.module.ts b/src/core/features/course/pages/index/index.module.ts
index 1e1d26938..314528baa 100644
--- a/src/core/features/course/pages/index/index.module.ts
+++ b/src/core/features/course/pages/index/index.module.ts
@@ -17,7 +17,7 @@ import { RouterModule, ROUTES, Routes } from '@angular/router';
 
 import { resolveModuleRoutes } from '@/app/app-routing.module';
 import { CoreSharedModule } from '@/core/shared.module';
-import { CoreCourseIndexPage } from './index.page';
+import { CoreCourseIndexPage } from '.';
 import { COURSE_INDEX_ROUTES } from './index-routing.module';
 
 function buildRoutes(injector: Injector): Routes {
diff --git a/src/core/features/course/pages/index/index.scss b/src/core/features/course/pages/index/index.scss
new file mode 100644
index 000000000..da91e59c2
--- /dev/null
+++ b/src/core/features/course/pages/index/index.scss
@@ -0,0 +1,26 @@
+@import '~theme/globals.scss';
+
+:host {
+    .core-course-thumb {
+        height: var(--core-courseimage-on-course-size);
+        min-height: var(--core-courseimage-on-course-size);
+        width: var(--core-courseimage-on-course-size);
+        min-width: var(--core-courseimage-on-course-size);
+    }
+
+    @if ($core-show-courseimage-on-course) {
+        .core-course-thumb {
+            display: block;
+        }
+    }
+
+    @if ($core-hide-progress-on-course) {
+        .core-course-progress {
+            display: none;
+        }
+    }
+
+    h1 {
+        font-size: 20px;
+    }
+}
diff --git a/src/core/features/course/pages/index/index.page.ts b/src/core/features/course/pages/index/index.ts
similarity index 69%
rename from src/core/features/course/pages/index/index.page.ts
rename to src/core/features/course/pages/index/index.ts
index 096de4843..2ecf4abab 100644
--- a/src/core/features/course/pages/index/index.page.ts
+++ b/src/core/features/course/pages/index/index.ts
@@ -26,6 +26,8 @@ import { CoreUtils } from '@services/utils/utils';
 import { CoreTextUtils } from '@services/utils/text';
 import { CoreNavigator } from '@services/navigator';
 import { CONTENTS_PAGE_NAME } from '@features/course/course.module';
+import { CoreDomUtils } from '@services/utils/dom';
+import { CoreCollapsibleHeaderDirective } from '@directives/collapsible-header';
 
 /**
  * Page that displays the list of courses the user is enrolled in.
@@ -33,23 +35,28 @@ import { CONTENTS_PAGE_NAME } from '@features/course/course.module';
 @Component({
     selector: 'page-core-course-index',
     templateUrl: 'index.html',
+    styleUrls: ['index.scss'],
 })
 export class CoreCourseIndexPage implements OnInit, OnDestroy {
 
     @ViewChild(CoreTabsOutletComponent) tabsComponent?: CoreTabsOutletComponent;
+    @ViewChild(CoreCollapsibleHeaderDirective) ionCollapsibleHeader?: CoreCollapsibleHeaderDirective;
 
-    title?: string;
+    title = '';
+    category = '';
     course?: CoreCourseAnyCourseData;
     tabs: CourseTab[] = [];
     loaded = false;
+    imageThumb?: string;
+    progress?: number;
 
     protected currentPagePath = '';
     protected selectTabObserver: CoreEventObserver;
     protected firstTabName?: string;
     protected module?: CoreCourseModuleData;
     protected modParams?: Params;
-    protected isGuest?: boolean;
-    protected contentsTab: CoreTabsOutletTab = {
+    protected isGuest = false;
+    protected contentsTab: CoreTabsOutletTab & { pageParams: Params } = {
         page: CONTENTS_PAGE_NAME,
         title: 'core.course',
         pageParams: {},
@@ -60,10 +67,10 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
             if (!data.name) {
                 // If needed, set sectionId and sectionNumber. They'll only be used if the content tabs hasn't been loaded yet.
                 if (data.sectionId) {
-                    this.contentsTab.pageParams!.sectionId = data.sectionId;
+                    this.contentsTab.pageParams.sectionId = data.sectionId;
                 }
                 if (data.sectionNumber) {
-                    this.contentsTab.pageParams!.sectionNumber = data.sectionNumber;
+                    this.contentsTab.pageParams.sectionNumber = data.sectionNumber;
                 }
 
                 // Select course contents.
@@ -79,7 +86,7 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
     }
 
     /**
-     * Component being initialized.
+     * @inheritdoc
      */
     async ngOnInit(): Promise<void> {
         // Increase route depth.
@@ -87,12 +94,19 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
 
         CoreNavigator.increaseRouteDepth(path.replace(/(\/deep)+/, ''));
 
-        // Get params.
-        this.course = CoreNavigator.getRouteParam('course');
+        try {
+            this.course = CoreNavigator.getRequiredRouteParam('course');
+        } catch (error) {
+            CoreDomUtils.showErrorModal(error);
+            CoreNavigator.back();
+
+            return;
+        }
+
         this.firstTabName = CoreNavigator.getRouteParam('selectedTab');
         this.module = CoreNavigator.getRouteParam<CoreCourseModuleData>('module');
         this.modParams = CoreNavigator.getRouteParam<Params>('modParams');
-        this.isGuest = CoreNavigator.getRouteBooleanParam('isGuest');
+        this.isGuest = !!CoreNavigator.getRouteBooleanParam('isGuest');
 
         this.currentPagePath = CoreNavigator.getCurrentPath();
         this.contentsTab.page = CoreTextUtils.concatenatePaths(this.currentPagePath, this.contentsTab.page);
@@ -104,7 +118,7 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
         };
 
         if (this.module) {
-            this.contentsTab.pageParams!.moduleId = this.module.id;
+            this.contentsTab.pageParams.moduleId = this.module.id;
         }
 
         this.tabs.push(this.contentsTab);
@@ -112,20 +126,23 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
 
         await Promise.all([
             this.loadCourseHandlers(),
-            this.loadTitle(),
+            this.loadBasinInfo(),
         ]);
     }
 
     /**
      * A tab was selected.
      */
-    tabSelected(): void {
-        if (this.module) {
-            // Now that the first tab has been selected we can load the module.
-            CoreCourseHelper.openModule(this.module, this.course!.id, this.contentsTab.pageParams!.sectionId, this.modParams);
+    tabSelected(tabToSelect: CoreTabsOutletTab): void {
+        this.ionCollapsibleHeader?.setupContent(tabToSelect.id);
 
-            delete this.module;
+        if (!this.module || !this.course) {
+            return;
         }
+        // Now that the first tab has been selected we can load the module.
+        CoreCourseHelper.openModule(this.module, this.course.id, this.contentsTab.pageParams.sectionId, this.modParams);
+
+        delete this.module;
     }
 
     /**
@@ -134,8 +151,12 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
      * @return Promise resolved when done.
      */
     protected async loadCourseHandlers(): Promise<void> {
+        if (!this.course) {
+            return;
+        }
+
         // Load the course handlers.
-        const handlers = await CoreCourseOptionsDelegate.getHandlersToDisplay(this.course!, false, this.isGuest);
+        const handlers = await CoreCourseOptionsDelegate.getHandlersToDisplay(this.course, false, this.isGuest);
 
         let tabToLoad: number | undefined;
 
@@ -169,23 +190,34 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
      *
      * @return Promise resolved when done.
      */
-    protected async loadTitle(): Promise<void> {
+    protected async loadBasinInfo(): Promise<void> {
+        if (!this.course) {
+            return;
+        }
+
         // Get the title to display initially.
-        this.title = CoreCourseFormatDelegate.getCourseTitle(this.course!);
+        this.title = CoreCourseFormatDelegate.getCourseTitle(this.course);
+        this.category = 'categoryname' in this.course ? this.course.categoryname : '';
+
+        if ('overviewfiles' in this.course) {
+            this.imageThumb = this.course.overviewfiles?.[0]?.fileurl;
+        }
+
+        this.updateProgress();
 
         // Load sections.
-        const sections = await CoreUtils.ignoreErrors(CoreCourse.getSections(this.course!.id, false, true));
+        const sections = await CoreUtils.ignoreErrors(CoreCourse.getSections(this.course.id, false, true));
 
         if (!sections) {
             return;
         }
 
         // Get the title again now that we have sections.
-        this.title = CoreCourseFormatDelegate.getCourseTitle(this.course!, sections);
+        this.title = CoreCourseFormatDelegate.getCourseTitle(this.course, sections);
     }
 
     /**
-     * Page destroyed.
+     * @inheritdoc
      */
     ngOnDestroy(): void {
         const path = CoreNavigator.getRouteFullPath(this.route.snapshot);
@@ -208,6 +240,39 @@ export class CoreCourseIndexPage implements OnInit, OnDestroy {
         this.tabsComponent?.ionViewDidLeave();
     }
 
+    /**
+     * Open the course summary
+     */
+    openCourseSummary(): void {
+        if (!this.course) {
+            return;
+        }
+
+        CoreNavigator.navigateToSitePath(
+            '/course/' + this.course.id + '/preview',
+            { params: { course: this.course, avoidOpenCourse: true } },
+        );
+    }
+
+    /**
+     * Update course progress.
+     */
+    protected updateProgress(): void {
+        if (
+            !this.course ||
+                !('progress' in this.course) ||
+                typeof this.course.progress !== 'number' ||
+                this.course.progress < 0 ||
+                this.course.completionusertracked === false
+        ) {
+            this.progress = undefined;
+
+            return;
+        }
+
+        this.progress = this.course.progress;
+    }
+
 }
 
 type CourseTab = CoreTabsOutletTab & {
diff --git a/src/core/features/course/services/course.ts b/src/core/features/course/services/course.ts
index 170cbbef5..001452497 100644
--- a/src/core/features/course/services/course.ts
+++ b/src/core/features/course/services/course.ts
@@ -71,6 +71,11 @@ export enum CoreCourseModuleCompletionStatus {
     COMPLETION_COMPLETE_FAIL = 3,
 }
 
+export enum CoreCourseCompletionType {
+    MANUAL = 0,
+    AUTO = 1,
+}
+
 /**
  * Completion tracking valid values.
  */
diff --git a/src/core/features/course/services/format-delegate.ts b/src/core/features/course/services/format-delegate.ts
index dc2efc50b..967903d58 100644
--- a/src/core/features/course/services/format-delegate.ts
+++ b/src/core/features/course/services/format-delegate.ts
@@ -267,8 +267,8 @@ export class CoreCourseFormatDelegateService extends CoreDelegate<CoreCourseForm
      * @param sections List of sections.
      * @return Course title.
      */
-    getCourseTitle(course: CoreCourseAnyCourseData, sections?: CoreCourseWSSection[]): string | undefined {
-        return this.executeFunctionOnEnabled(course.format || '', 'getCourseTitle', [course, sections]);
+    getCourseTitle(course: CoreCourseAnyCourseData, sections?: CoreCourseWSSection[]): string {
+        return this.executeFunctionOnEnabled(course.format || '', 'getCourseTitle', [course, sections]) || '';
     }
 
     /**
diff --git a/src/core/singletons/events.ts b/src/core/singletons/events.ts
index ecc3a9ad8..288897bbd 100644
--- a/src/core/singletons/events.ts
+++ b/src/core/singletons/events.ts
@@ -20,6 +20,7 @@ import { CoreFilepoolComponentFileEventData } from '@services/filepool';
 import { CoreNavigationOptions } from '@services/navigator';
 import { CoreCourseModuleCompletionData } from '@features/course/services/course-helper';
 import { CoreScreenOrientation } from '@services/screen';
+import { CoreCourseCompletionType } from '@features/course/services/course';
 
 /**
  * Observer instance to stop listening to an event.
@@ -48,6 +49,7 @@ export interface CoreEventsData {
     [CoreEvents.SELECT_COURSE_TAB]: CoreEventSelectCourseTabData;
     [CoreEvents.COMPLETION_MODULE_VIEWED]: CoreEventCompletionModuleViewedData;
     [CoreEvents.MANUAL_COMPLETION_CHANGED]: CoreEventManualCompletionChangedData;
+    [CoreEvents.COMPLETION_CHANGED]: CoreEventCompletionChangedData;
     [CoreEvents.SECTION_STATUS_CHANGED]: CoreEventSectionStatusChangedData;
     [CoreEvents.ACTIVITY_DATA_SENT]: CoreEventActivityDataSentData;
     [CoreEvents.IAB_LOAD_START]: InAppBrowserEvent;
@@ -77,7 +79,11 @@ export class CoreEvents {
     static readonly SITE_UPDATED = 'site_updated';
     static readonly SITE_DELETED = 'site_deleted';
     static readonly COMPLETION_MODULE_VIEWED = 'completion_module_viewed';
+    /**
+     * Deprecated on 4.0 use COMPLETION_CHANGED instead.
+     */
     static readonly MANUAL_COMPLETION_CHANGED = 'manual_completion_changed';
+    static readonly COMPLETION_CHANGED = 'completion_changed';
     static readonly USER_DELETED = 'user_deleted';
     static readonly PACKAGE_STATUS_CHANGED = 'package_status_changed';
     static readonly COURSE_STATUS_CHANGED = 'course_status_changed';
@@ -347,6 +353,14 @@ export type CoreEventManualCompletionChangedData = {
     completion: CoreCourseModuleCompletionData;
 };
 
+/**
+ * Data passed to COMPLETION_CHANGED event.
+ */
+export type CoreEventCompletionChangedData = {
+    completion: CoreCourseModuleCompletionData;
+    type: CoreCourseCompletionType;
+};
+
 /**
  * Data passed to SECTION_STATUS_CHANGED event.
  */
diff --git a/src/theme/theme.base.scss b/src/theme/theme.base.scss
index 85eac3689..cd61d7f89 100644
--- a/src/theme/theme.base.scss
+++ b/src/theme/theme.base.scss
@@ -1225,6 +1225,13 @@ ion-grid.core-no-grid > ion-row {
     display: block;
 }
 
+.core-underheader {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+}
+
 ion-header[collapsible] {
     @include core-transition(all, 500ms);
 
@@ -1247,7 +1254,14 @@ ion-header[collapsible] {
 
 .collapsible-title {
     overflow: visible;
-    *, h1, h2, .subheading {
+    --inner-padding-top: 0px;
+    --padding-top: 0px;
+
+    ion-label {
+        margin-top: 0px;
+    }
+
+    *, h1 {
         @include core-transition(all, 200ms, linear);
     }
 
@@ -1255,9 +1269,12 @@ ion-header[collapsible] {
         overflow: visible !important;
     }
 
-    h1, h2, .subheading {
+    h1 {
         --max-width: none;
     }
+    h1.cloned {
+        opacity: 0 !important;
+    }
 }
 
 ion-app.ios .collapsible-title h1 {
@@ -1269,7 +1286,7 @@ ion-app.md .collapsible-title h1 {
 }
 
 .collapsible-title.collapsible-title-collapsed {
-    ion-label, h1, h2, ion-row, ion-col, .subheading {
+    ion-label, h1, ion-row, ion-col {
         opacity: 0;
     }
 }
@@ -1279,13 +1296,13 @@ ion-app.md .collapsible-title h1 {
         opacity: var(--collapse-opacity, 0);
     }
 
-    ion-label, h1, h2, ion-row, ion-col, .subheading {
+    ion-label, h1, ion-row, ion-col, .subheading {
         opacity: 1;
     }
 }
 
 .collapsible-title.collapsible-title-collapse-nowrap {
-    h1, h2, .subheading {
+    h1:not(.cloned) {
         max-width: var(--max-width);
         white-space: nowrap;
         overflow: hidden;