diff --git a/src/addons/messages/messages.module.ts b/src/addons/messages/messages.module.ts
index c6579af46..9f7748ff0 100644
--- a/src/addons/messages/messages.module.ts
+++ b/src/addons/messages/messages.module.ts
@@ -87,7 +87,7 @@ const preferencesRoutes: Routes = [
                 CoreUserDelegate.registerHandler(AddonMessagesSendMessageUserHandler.instance);
 
                 // Sync some discussions when device goes online.
-                CoreNetwork.onConnect().subscribe(() => {
+                CoreNetwork.onConnectShouldBeStable().subscribe(() => {
                     // Execute the callback in the Angular zone, so change detection doesn't stop working.
                     NgZone.run(() => {
                         AddonMessagesSync.syncAllDiscussions(undefined, true);
diff --git a/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.html b/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.html
index 0f628b053..b174ad52c 100644
--- a/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.html
+++ b/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.html
@@ -65,7 +65,7 @@
 <!-- Template to render a list of conversations. -->
 <ng-template #attemptsTemplate let-attempts="attempts">
     <!-- "Header" of the table -->
-    <ion-item class="ion-text-wrap addon-mod_h5pactivity-table-header hide-detail" detail="true">
+    <ion-item class="addon-mod_h5pactivity-table-header hide-detail" detail="true">
         <ion-label>
             <ion-row class="ion-align-items-center">
                 <ion-col class="ion-text-center">#</ion-col>
diff --git a/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.scss b/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.scss
index 82ba0a46c..eee2a95b4 100644
--- a/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.scss
+++ b/src/addons/mod/h5pactivity/pages/user-attempts/user-attempts.scss
@@ -1,6 +1,11 @@
 :host {
     .addon-mod_h5pactivity-table-header {
         font-weight: bold;
+
+        ion-col {
+            overflow: hidden;
+            text-overflow: ellipsis;
+        }
     }
 
     .addon-mod_h5pactivity-table-row .addon-mod_h5pactivity-table-success-col {
diff --git a/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.html b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.html
index 375cb84cc..2610c501e 100644
--- a/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.html
+++ b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.html
@@ -31,9 +31,9 @@
             </ion-item>
 
             <!-- List of users. -->
-            <ion-item class="ion-text-wrap addon-mod_h5pactivity-table-row" *ngFor="let user of users" detail="true" button
+            <ion-item class="ion-text-wrap addon-mod_h5pactivity-table-row" *ngFor="let user of users" detail="true"
                 [attr.aria-label]="'addon.mod_h5pactivity.review_user_attempts' | translate:{$a: user.attempts.length}"
-                (click)="openUser(user)">
+                (click)="openUser(user)" [class.hide-detail]="!user.attempts.length" [button]="user.attempts.length > 0">
 
                 <ion-label>
                     <ion-row class="ion-align-items-center">
diff --git a/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.scss b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.scss
new file mode 100644
index 000000000..4f70d0bdd
--- /dev/null
+++ b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.scss
@@ -0,0 +1,6 @@
+:host {
+    .addon-mod_h5pactivity-table-header ion-col {
+        overflow: hidden;
+        text-overflow: ellipsis;
+    }
+}
diff --git a/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.ts b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.ts
index b2bb4b57b..cf977abbf 100644
--- a/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.ts
+++ b/src/addons/mod/h5pactivity/pages/users-attempts/users-attempts.ts
@@ -32,6 +32,7 @@ import {
 @Component({
     selector: 'page-addon-mod-h5pactivity-users-attempts',
     templateUrl: 'users-attempts.html',
+    styleUrls: ['users-attempts.scss'],
 })
 export class AddonModH5PActivityUsersAttemptsPage implements OnInit {
 
@@ -208,6 +209,10 @@ export class AddonModH5PActivityUsersAttemptsPage implements OnInit {
      * @param user User to open.
      */
     openUser(user: AddonModH5PActivityUserAttemptsFormatted): void {
+        if (!user.attempts.length) {
+            return;
+        }
+
         CoreNavigator.navigate(`../userattempts/${user.userid}`);
     }
 
diff --git a/src/addons/notes/pages/list/list.ts b/src/addons/notes/pages/list/list.ts
index c59455cc7..1369ec308 100644
--- a/src/addons/notes/pages/list/list.ts
+++ b/src/addons/notes/pages/list/list.ts
@@ -98,12 +98,12 @@ export class AddonNotesListPage implements OnInit, OnDestroy {
      * Fetch notes.
      *
      * @param sync When to resync notes.
-     * @param showErrors When to display errors or not.
+     * @param showSyncErrors When to display sync errors or not.
      * @returns Promise with the notes.
      */
-    protected async fetchNotes(sync = false, showErrors = false): Promise<void> {
+    protected async fetchNotes(sync = false, showSyncErrors = false): Promise<void> {
         if (sync) {
-            await this.syncNotes(showErrors);
+            await this.syncNotes(showSyncErrors);
         }
 
         try {
@@ -150,15 +150,15 @@ export class AddonNotesListPage implements OnInit, OnDestroy {
     /**
      * Refresh notes on PTR.
      *
-     * @param showErrors Whether to display errors or not.
+     * @param showSyncErrors Whether to display sync errors or not.
      * @param refresher Refresher instance.
      */
-    refreshNotes(showErrors: boolean, refresher?: IonRefresher): void {
+    refreshNotes(showSyncErrors: boolean, refresher?: IonRefresher): void {
         this.refreshIcon = CoreConstants.ICON_LOADING;
         this.syncIcon = CoreConstants.ICON_LOADING;
 
         AddonNotes.invalidateNotes(this.courseId, this.userId).finally(() => {
-            this.fetchNotes(true, showErrors).finally(() => {
+            this.fetchNotes(true, showSyncErrors).finally(() => {
                 if (refresher) {
                     refresher?.complete();
                 }
@@ -253,7 +253,7 @@ export class AddonNotesListPage implements OnInit, OnDestroy {
         e.stopPropagation();
 
         await AddonNotesOffline.undoDeleteNote(note.id);
-        this.refreshNotes(true);
+        this.refreshNotes(false);
     }
 
     /**
@@ -266,16 +266,16 @@ export class AddonNotesListPage implements OnInit, OnDestroy {
     /**
      * Tries to synchronize course notes.
      *
-     * @param showErrors Whether to display errors or not.
+     * @param showSyncErrors Whether to display sync errors or not.
      * @returns Promise resolved when done.
      */
-    protected async syncNotes(showErrors: boolean): Promise<void> {
+    protected async syncNotes(showSyncErrors: boolean): Promise<void> {
         try {
             const result = await AddonNotesSync.syncNotes(this.courseId);
 
             this.showSyncWarnings(result.warnings);
         } catch (error) {
-            if (showErrors) {
+            if (showSyncErrors) {
                 CoreDomUtils.showErrorModalDefault(error, 'core.errorsync', true);
             }
         }
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index 2462f1841..badb8dc75 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -196,10 +196,15 @@ export class AppComponent implements OnInit, AfterViewInit {
      */
     ngAfterViewInit(): void {
         if (!this.outlet) {
+            this.logger.debug('Aftew view init: no outlet found');
+
             return;
         }
 
+        this.logger.debug('Aftew view init');
+
         CoreSubscriptions.once(this.outlet.activateEvents, async () => {
+            this.logger.debug('Activate event triggered');
             await CorePlatform.ready();
 
             this.logger.debug('Hide splash screen');
@@ -213,6 +218,8 @@ export class AppComponent implements OnInit, AfterViewInit {
     protected async onPlatformReady(): Promise<void> {
         await CorePlatform.ready();
 
+        this.logger.debug('Platform is ready');
+
         // Refresh online status when changes.
         CoreNetwork.onChange().subscribe(() => {
             // Execute the callback in the Angular zone, so change detection doesn't stop working.
diff --git a/src/core/initializers/watch-network.ts b/src/core/initializers/watch-network.ts
index 9d8aabf5f..74c6a0261 100644
--- a/src/core/initializers/watch-network.ts
+++ b/src/core/initializers/watch-network.ts
@@ -16,9 +16,12 @@ import { CoreCronDelegate } from '@services/cron';
 import { NgZone } from '@singletons';
 import { CoreNetwork } from '@services/network';
 
+/**
+ * Initializer function.
+ */
 export default function(): void {
     // When the app is re-connected, start network handlers that were stopped.
-    CoreNetwork.onConnect().subscribe(() => {
+    CoreNetwork.onConnectShouldBeStable().subscribe(() => {
         // Execute the callback in the Angular zone, so change detection doesn't stop working.
         NgZone.run(() => CoreCronDelegate.startNetworkHandlers());
     });
diff --git a/src/core/services/filepool.ts b/src/core/services/filepool.ts
index 1751636f0..3c633823a 100644
--- a/src/core/services/filepool.ts
+++ b/src/core/services/filepool.ts
@@ -150,7 +150,7 @@ export class CoreFilepoolProvider {
             this.checkQueueProcessing();
 
             // Start queue when device goes online.
-            CoreNetwork.onConnect().subscribe(() => {
+            CoreNetwork.onConnectShouldBeStable().subscribe(() => {
                 // Execute the callback in the Angular zone, so change detection doesn't stop working.
                 NgZone.run(() => this.checkQueueProcessing());
             });
diff --git a/src/core/services/network.ts b/src/core/services/network.ts
index aeb49a4ae..b50a87601 100644
--- a/src/core/services/network.ts
+++ b/src/core/services/network.ts
@@ -38,9 +38,11 @@ export class CoreNetworkService extends Network {
     type!: string;
 
     protected connectObservable = new Subject<'connected'>();
+    protected connectStableObservable = new Subject<'connected'>();
     protected disconnectObservable = new Subject<'disconnected'>();
     protected forceConnectionMode?: CoreNetworkConnection;
     protected online = false;
+    protected connectStableTimeout?: number;
 
     get connectionType(): CoreNetworkConnection {
         if (this.forceConnectionMode !== undefined) {
@@ -146,6 +148,7 @@ export class CoreNetworkService extends Network {
     /**
      * Returns an observable to notify when the app is connected.
      * It will also be fired when connection type changes.
+     * If you're going to perform network requests once the device is connected, please use onConnectShouldBeStable instead.
      *
      * @returns Observable.
      */
@@ -153,6 +156,18 @@ export class CoreNetworkService extends Network {
         return this.connectObservable;
     }
 
+    /**
+     * Returns an observable to notify when the app is connected and it should already be a stable a connection.
+     * E.g. when leaving flight mode the device could connect to mobile network first and then to WiFi.
+     * If you're going to perform network requests once the device is connected, it's recommended to use this function instead of
+     * onConnect because some OS (e.g. Android) duplicate a request if the type of connection changes while the request is done.
+     *
+     * @returns Observable.
+     */
+    onConnectShouldBeStable(): Observable<'connected'> {
+        return this.connectStableObservable;
+    }
+
     /**
      * Returns an observable to notify when the app is disconnected.
      *
@@ -166,10 +181,14 @@ export class CoreNetworkService extends Network {
      * Fires the correct observable depending on the connection status.
      */
     protected fireObservable(): void {
+        clearTimeout(this.connectStableTimeout);
         this.checkOnline();
 
         if (this.online) {
             this.connectObservable.next('connected');
+            this.connectStableTimeout = window.setTimeout(() => {
+                this.connectStableObservable.next('connected');
+            }, 5000);
         } else {
             this.disconnectObservable.next('disconnected');
         }
diff --git a/src/core/services/utils/iframe.ts b/src/core/services/utils/iframe.ts
index 3314fc8dc..a35d72194 100644
--- a/src/core/services/utils/iframe.ts
+++ b/src/core/services/utils/iframe.ts
@@ -76,7 +76,7 @@ export class CoreIframeUtilsProvider {
             this.addOfflineWarning(element, src, isSubframe);
 
             // If the network changes, check it again.
-            const subscription = CoreNetwork.onConnect().subscribe(() => {
+            const subscription = CoreNetwork.onConnectShouldBeStable().subscribe(() => {
                 // Execute the callback in the Angular zone, so change detection doesn't stop working.
                 NgZone.run(() => {
                     if (!this.checkOnlineFrameInOffline(element, isSubframe)) {