diff --git a/src/addon/block/timeline/components/events/events.scss b/src/addon/block/timeline/components/events/events.scss
index 1c722ae93..76da48072 100644
--- a/src/addon/block/timeline/components/events/events.scss
+++ b/src/addon/block/timeline/components/events/events.scss
@@ -1,19 +1,7 @@
 ion-app.app-root core-courses-course-progress {
 
-    .core-course-module-handler.item-md.item-block .item-inner {
-      border-bottom: 1px solid $list-md-border-color;
-    }
-
-    .core-course-module-handler.item-ios.item-block .item-inner {
-      border-bottom: $hairlines-width solid $list-ios-border-color;
-    }
-
-    .core-course-module-handler.item-wp.item-block .item-inner {
-      border-bottom: 1px solid $list-wp-border-color;
-    }
-
-    .core-course-module-handler.item:last-child .item-inner {
-        border-bottom: 0;
+    .core-course-module-handler.item {
+        @include core-items();
     }
 
     .core-course-module-handler.item .item-heading:first-child {
diff --git a/src/addon/mod/data/pages/entry/entry.html b/src/addon/mod/data/pages/entry/entry.html
index a23353f2a..c1d727795 100644
--- a/src/addon/mod/data/pages/entry/entry.html
+++ b/src/addon/mod/data/pages/entry/entry.html
@@ -22,7 +22,7 @@
             </ion-select>
         </ion-item>
 
-        <div class="addon-data-contents {{cssClass}}">
+        <div class="addon-data-contents {{cssClass}}" *ngIf="entry">
             <style *ngIf="cssTemplate">
                 {{ cssTemplate }}
             </style>
diff --git a/src/addon/mod/data/pages/entry/entry.ts b/src/addon/mod/data/pages/entry/entry.ts
index 815611c97..1b2b721eb 100644
--- a/src/addon/mod/data/pages/entry/entry.ts
+++ b/src/addon/mod/data/pages/entry/entry.ts
@@ -215,6 +215,7 @@ export class AddonModDataEntryPage implements OnDestroy {
      */
     gotoEntry(entry: number): Promise<any> {
         this.entryId = entry;
+        this.entry = null;
         this.page = null;
         this.entryLoaded = false;
 
diff --git a/src/addon/mod/workshop/components/assessment/assessment.scss b/src/addon/mod/workshop/components/assessment/assessment.scss
index bacc18ee2..f7d3ed7f2 100644
--- a/src/addon/mod/workshop/components/assessment/assessment.scss
+++ b/src/addon/mod/workshop/components/assessment/assessment.scss
@@ -1,35 +1,4 @@
-ion-app.app-root addon-mod-workshop-assessment {
-    .item-md.item-block .item-inner {
-      border-bottom: 1px solid $list-md-border-color;
-    }
-
-    .item-ios.item-block .item-inner {
-      border-bottom: $hairlines-width solid $list-ios-border-color;
-    }
-
-    .item-wp.item-block .item-inner {
-      border-bottom: 1px solid $list-wp-border-color;
-    }
-
-    &:last-child .item .item-inner {
-      border-bottom: 0;
-    }
-}
-
+ion-app.app-root addon-mod-workshop-assessment,
 ion-app.app-root .card.with-borders addon-mod-workshop-assessment {
-    .item-md.item-block .item-inner {
-      border-bottom: 1px solid $list-md-border-color;
-    }
-
-    .item-ios.item-block .item-inner {
-      border-bottom: $hairlines-width solid $list-ios-border-color;
-    }
-
-    .item-wp.item-block .item-inner {
-      border-bottom: 1px solid $list-wp-border-color;
-    }
-
-    &:last-child .item .item-inner {
-      border-bottom: 0;
-    }
+  @include core-as-items();
 }
\ No newline at end of file
diff --git a/src/addon/mod/workshop/components/submission/submission.scss b/src/addon/mod/workshop/components/submission/submission.scss
index 2dac5ff4e..6775a13ac 100644
--- a/src/addon/mod/workshop/components/submission/submission.scss
+++ b/src/addon/mod/workshop/components/submission/submission.scss
@@ -1,35 +1,4 @@
-ion-app.app-root addon-mod-workshop-submission {
-    .item-md.item-block .item-inner {
-      border-bottom: 1px solid $list-md-border-color;
-    }
-
-    .item-ios.item-block .item-inner {
-      border-bottom: $hairlines-width solid $list-ios-border-color;
-    }
-
-    .item-wp.item-block .item-inner {
-      border-bottom: 1px solid $list-wp-border-color;
-    }
-
-    &:last-child .item .item-inner {
-      border-bottom: 0;
-    }
-}
-
+ion-app.app-root addon-mod-workshop-submission,
 ion-app.app-root .card.with-borders addon-mod-workshop-submission {
-    .item-md.item-block .item-inner {
-      border-bottom: 1px solid $list-md-border-color;
-    }
-
-    .item-ios.item-block .item-inner {
-      border-bottom: $hairlines-width solid $list-ios-border-color;
-    }
-
-    .item-wp.item-block .item-inner {
-      border-bottom: 1px solid $list-wp-border-color;
-    }
-
-    &:last-child .item .item-inner {
-      border-bottom: 0;
-    }
+  @include core-as-items();
 }
\ No newline at end of file
diff --git a/src/addon/mod/workshop/providers/prefetch-handler.ts b/src/addon/mod/workshop/providers/prefetch-handler.ts
index 651e1b735..d7e213044 100644
--- a/src/addon/mod/workshop/providers/prefetch-handler.ts
+++ b/src/addon/mod/workshop/providers/prefetch-handler.ts
@@ -297,13 +297,13 @@ export class AddonModWorkshopPrefetchHandler extends CoreCourseActivityPrefetchH
                                     userIds.push(grade.userid);
                                     userIds.push(grade.gradeoverby);
 
-                                    grade.reviewedby.forEach((assessment) => {
+                                    grade.reviewedby && grade.reviewedby.forEach((assessment) => {
                                         userIds.push(assessment.userid);
                                         userIds.push(assessment.gradinggradeoverby);
                                         assessments[assessment.assessmentid] = assessment;
                                     });
 
-                                    grade.reviewerof.forEach((assessment) => {
+                                    grade.reviewerof && grade.reviewerof.forEach((assessment) => {
                                         userIds.push(assessment.userid);
                                         userIds.push(assessment.gradinggradeoverby);
                                         assessments[assessment.assessmentid] = assessment;
diff --git a/src/app/app.ios.scss b/src/app/app.ios.scss
index 3a6213ed1..a2f7085af 100644
--- a/src/app/app.ios.scss
+++ b/src/app/app.ios.scss
@@ -70,15 +70,6 @@ ion-app.app-root.ios {
     }
   }
 
-  // Recover borders on items inside cards.
-  .card-ios.with-borders  .item-ios.item-block .item-inner {
-    border-bottom: $hairlines-width solid $list-ios-border-color;
-  }
-  .card-ios.with-borders .item-ios:last-child .item-inner {
-    border-bottom: 0;
-  }
-
-
   .radio-ios .radio-icon {
     @include position(0, null, null, 0);
     @include margin(0);
diff --git a/src/app/app.md.scss b/src/app/app.md.scss
index c718b691c..8fe5fb096 100644
--- a/src/app/app.md.scss
+++ b/src/app/app.md.scss
@@ -48,14 +48,6 @@ ion-app.app-root.md {
     }
   }
 
-  // Recover borders on items inside cards.
-  .card-md.with-borders .item-md.item-block .item-inner {
-    border-bottom: 1px solid $list-md-border-color;
-  }
-  .card-md.with-borders .item-md:last-child .item-inner {
-    border-bottom: 0;
-  }
-
   .action-sheet-md {
     .action-sheet-title,
     .action-sheet-container > .action-sheet-group:first-child {
diff --git a/src/app/app.scss b/src/app/app.scss
index 839ceb389..0889d3c2f 100644
--- a/src/app/app.scss
+++ b/src/app/app.scss
@@ -96,6 +96,16 @@ ion-app.app-root {
     border: 0;
   }
 
+  // Recover borders on items inside cards.
+  .card.with-borders .core-as-item,
+  .core-as-item {
+    @include core-as-items();
+  }
+
+  .card.with-borders .item {
+    @include core-items();
+  }
+
   .core-oauth-icon, .item.core-oauth-icon, .list .item.core-oauth-icon {
     min-height: 32px;
     img, .label {
@@ -842,7 +852,6 @@ ion-app.app-root {
 
     core-loading {
       flex-grow: 1;
-      position: relative !important;
 
       .core-loading-content {
         position: absolute;
diff --git a/src/app/app.wp.scss b/src/app/app.wp.scss
index f8156ec7c..e64c3726a 100644
--- a/src/app/app.wp.scss
+++ b/src/app/app.wp.scss
@@ -47,12 +47,4 @@ ion-app.app-root.wp {
       @include padding(null, null, null, 15px * $i + $item-wp-padding-start);
     }
   }
-
-  // Recover borders on items inside cards.
-  .card-wp.with-borders  .item-wp.item-block .item-inner {
-    border-bottom: 1px solid $list-wp-border-color;
-  }
-  .card-wp.with-borders .item-wp:last-child .item-inner {
-    border-bottom: 0;
-  }
 }
\ No newline at end of file
diff --git a/src/components/file/file.scss b/src/components/file/file.scss
index 0c7c1f2cb..a39dcde10 100644
--- a/src/components/file/file.scss
+++ b/src/components/file/file.scss
@@ -13,4 +13,8 @@ ion-app.app-root {
     core-file + core-file > .item-wp.item-block > .item-inner {
         border-top: 1px solid $list-wp-border-color;
     }
+
+    core-file > .item.item-block > .item-inner {
+        border-bottom: 0;
+    }
 }
\ No newline at end of file
diff --git a/src/components/tabs/core-tabs.html b/src/components/tabs/core-tabs.html
index 7b0e2954b..5799c09bd 100644
--- a/src/components/tabs/core-tabs.html
+++ b/src/components/tabs/core-tabs.html
@@ -5,7 +5,7 @@
                 <ion-icon *ngIf="showPrevButton" name="arrow-back" md="ios-arrow-back"></ion-icon>
             </ion-col>
             <ion-col no-padding col-10>
-                <ion-slides (ionSlideDidChange)="slideChanged()" [slidesPerView]="slidesShown">
+                <ion-slides (ionSlideDidChange)="slideChanged()" [slidesPerView]="slidesShown" [dir]="direction">
                     <ng-container *ngFor="let tab of tabs; let idx = index">
                         <ion-slide *ngIf="tab.show">
                             <a [attr.aria-selected]="selected == idx" (click)="selectTab(idx)" class="tab-slide">
diff --git a/src/components/tabs/tabs.scss b/src/components/tabs/tabs.scss
index a33a2bfae..4c2cfc506 100644
--- a/src/components/tabs/tabs.scss
+++ b/src/components/tabs/tabs.scss
@@ -62,18 +62,6 @@ ion-app.app-root .core-tabs-bar {
 
         }
     }
-
-    @include rtl() {
-        .swiper-container-horizontal {
-            transform: scaleX(-1);
-            .swiper-wrapper {
-                flex-direction: row-reverse;
-                ion-slide {
-                    transform: scaleX(-1);
-                }
-            }
-        }
-    }
 }
 
 ion-app.app-root.md .core-tabs-bar a.tab-slide {
diff --git a/src/components/tabs/tabs.ts b/src/components/tabs/tabs.ts
index 2dc4faf73..d46d12170 100644
--- a/src/components/tabs/tabs.ts
+++ b/src/components/tabs/tabs.ts
@@ -16,7 +16,9 @@ import {
     Component, Input, Output, EventEmitter, OnInit, OnChanges, OnDestroy, AfterViewInit, ViewChild, ElementRef,
     SimpleChange
 } from '@angular/core';
-import { Content, Slides } from 'ionic-angular';
+import { Content, Slides, Platform } from 'ionic-angular';
+import { TranslateService } from '@ngx-translate/core';
+import { Subscription } from 'rxjs';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
 import { CoreAppProvider } from '@providers/app';
 import { CoreTabComponent } from './tab';
@@ -59,6 +61,7 @@ export class CoreTabsComponent implements OnInit, AfterViewInit, OnChanges, OnDe
     maxSlides = 3;
     slidesShown = this.maxSlides;
     numTabsShown = 0;
+    direction = 'ltr';
 
     protected originalTabsContainer: HTMLElement; // The container of the original tabs. It will include each tab's content.
     protected initialized = false;
@@ -77,10 +80,20 @@ export class CoreTabsComponent implements OnInit, AfterViewInit, OnChanges, OnDe
 
     protected firstSelectedTab: number;
     protected unregisterBackButtonAction: any;
+    protected languageChangedSubscription: Subscription;
 
     constructor(element: ElementRef, protected content: Content, protected domUtils: CoreDomUtilsProvider,
-            protected appProvider: CoreAppProvider) {
+            protected appProvider: CoreAppProvider, platform: Platform, translate: TranslateService) {
         this.tabBarElement = element.nativeElement;
+
+        this.direction = platform.isRTL ? 'rtl' : 'ltr';
+
+        // Change the side when the language changes.
+        this.languageChangedSubscription = translate.onLangChange.subscribe((event: any) => {
+            setTimeout(() => {
+                this.direction = platform.isRTL ? 'rtl' : 'ltr';
+            });
+        });
     }
 
     /**
diff --git a/src/providers/utils/dom.ts b/src/providers/utils/dom.ts
index faf948769..f08e51cb0 100644
--- a/src/providers/utils/dom.ts
+++ b/src/providers/utils/dom.ts
@@ -1034,6 +1034,9 @@ export class CoreDomUtilsProvider {
                 if (error.backtrace) {
                     extraInfo += '<br><br>' + this.textUtils.replaceNewLines(this.textUtils.escapeHTML(error.backtrace), '<br>');
                 }
+
+                // tslint:disable-next-line
+                console.error(error);
             }
 
             // We received an object instead of a string. Search for common properties.
diff --git a/src/theme/variables.scss b/src/theme/variables.scss
index 3e0d624a2..f3fbdfd3e 100644
--- a/src/theme/variables.scss
+++ b/src/theme/variables.scss
@@ -433,6 +433,42 @@ $core-question-state-incorrect-color: $red-light !default;
   }
 }
 
+@mixin core-as-items() {
+  .item-md.item-block > .item-inner {
+    border-bottom: 1px solid $list-md-border-color;
+  }
+
+  .item-ios.item-block > .item-inner {
+    border-bottom: $hairlines-width solid $list-ios-border-color;
+  }
+
+  .item-wp.item-block > .item-inner {
+    border-bottom: 1px solid $list-wp-border-color;
+  }
+
+  &:last-child .item > .item-inner {
+    border-bottom: 0;
+  }
+}
+
+@mixin core-items() {
+  &.item-md.item-block > .item-inner {
+    border-bottom: 1px solid $list-md-border-color;
+  }
+
+  &.item-ios.item-block > .item-inner {
+    border-bottom: $hairlines-width solid $list-ios-border-color;
+  }
+
+  &.item-wp.item-block > .item-inner {
+    border-bottom: 1px solid $list-wp-border-color;
+  }
+
+  &:last-child > .item-inner {
+    border-bottom: 0;
+  }
+}
+
 // Font Awesome
 $fa-font-path: $font-path;
 @import "font-awesome";