diff --git a/src/addon/mod/data/fields/checkbox/component/checkbox.ts b/src/addon/mod/data/fields/checkbox/component/checkbox.ts
index 98cbe5cc7..2db02302a 100644
--- a/src/addon/mod/data/fields/checkbox/component/checkbox.ts
+++ b/src/addon/mod/data/fields/checkbox/component/checkbox.ts
@@ -40,7 +40,7 @@ export class AddonModDataFieldCheckboxComponent extends AddonModDataFieldPluginC
             return;
         }
 
-        this.options = this.field.param1.split('\n').map((option) => {
+        this.options = this.field.param1.split(/\r?\n/).map((option) => {
             return { key: option, value: option };
         });
 
@@ -67,7 +67,7 @@ export class AddonModDataFieldCheckboxComponent extends AddonModDataFieldPluginC
      * @param {any} value New value to be set.
      */
     protected updateValue(value: any): void {
-        this.value = value;
+        this.value = value || {};
         this.value.content = value && value.content && value.content.split('##').join('<br>');
     }
 }
diff --git a/src/addon/mod/data/fields/checkbox/providers/handler.ts b/src/addon/mod/data/fields/checkbox/providers/handler.ts
index 48c50d8d7..3c3009394 100644
--- a/src/addon/mod/data/fields/checkbox/providers/handler.ts
+++ b/src/addon/mod/data/fields/checkbox/providers/handler.ts
@@ -80,14 +80,10 @@ export class AddonModDataFieldCheckboxHandler implements AddonModDataFieldHandle
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const fieldName = 'f_' + field.id;
 
-        if (inputData[fieldName] && inputData[fieldName].length > 0) {
-            return [{
-                fieldid: field.id,
-                value: inputData[fieldName]
-            }];
-        }
-
-        return false;
+        return [{
+            fieldid: field.id,
+            value: inputData[fieldName] || []
+        }];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/file/providers/handler.ts b/src/addon/mod/data/fields/file/providers/handler.ts
index 38a58e7de..d6e10b4b1 100644
--- a/src/addon/mod/data/fields/file/providers/handler.ts
+++ b/src/addon/mod/data/fields/file/providers/handler.ts
@@ -72,15 +72,11 @@ export class AddonModDataFieldFileHandler implements AddonModDataFieldHandler {
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const files = this.getFieldEditFiles(field);
 
-        if (files.length) {
-            return [{
-                fieldid: field.id,
-                subfield: 'file',
-                files: files
-            }];
-        }
-
-        return false;
+        return [{
+            fieldid: field.id,
+            subfield: 'file',
+            files: files
+        }];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/latlong/providers/handler.ts b/src/addon/mod/data/fields/latlong/providers/handler.ts
index fb549c7c4..606db2878 100644
--- a/src/addon/mod/data/fields/latlong/providers/handler.ts
+++ b/src/addon/mod/data/fields/latlong/providers/handler.ts
@@ -66,26 +66,20 @@ export class AddonModDataFieldLatlongHandler implements AddonModDataFieldHandler
      * @return {any}            With name and value of the data to be sent.
      */
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
-        const fieldName = 'f_' + field.id,
-            values = [];
+        const fieldName = 'f_' + field.id;
 
-        if (inputData[fieldName + '_0']) {
-            values.push({
+        return [
+            {
                 fieldid: field.id,
                 subfield: '0',
-                value: inputData[fieldName + '_0']
-            });
-        }
-
-        if (inputData[fieldName + '_1']) {
-            values.push({
+                value: inputData[fieldName + '_0'] || ''
+            },
+            {
                 fieldid: field.id,
                 subfield: '1',
-                value: inputData[fieldName + '_1']
-            });
-        }
-
-        return values;
+                value: inputData[fieldName + '_1'] || ''
+            }
+        ];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/multimenu/component/multimenu.ts b/src/addon/mod/data/fields/multimenu/component/multimenu.ts
index c642895f9..b31800229 100644
--- a/src/addon/mod/data/fields/multimenu/component/multimenu.ts
+++ b/src/addon/mod/data/fields/multimenu/component/multimenu.ts
@@ -40,7 +40,7 @@ export class AddonModDataFieldMultimenuComponent extends AddonModDataFieldPlugin
             return;
         }
 
-        this.options = this.field.param1.split('\n').map((option) => {
+        this.options = this.field.param1.split(/\r?\n/).map((option) => {
             return { key: option, value: option };
         });
 
@@ -67,7 +67,7 @@ export class AddonModDataFieldMultimenuComponent extends AddonModDataFieldPlugin
      * @param {any} value New value to be set.
      */
     protected updateValue(value: any): void {
-        this.value = value;
+        this.value = value || {};
         this.value.content = value && value.content && value.content.split('##').join('<br>');
     }
 }
diff --git a/src/addon/mod/data/fields/multimenu/providers/handler.ts b/src/addon/mod/data/fields/multimenu/providers/handler.ts
index 716da06bf..7c98f1b8c 100644
--- a/src/addon/mod/data/fields/multimenu/providers/handler.ts
+++ b/src/addon/mod/data/fields/multimenu/providers/handler.ts
@@ -80,14 +80,10 @@ export class AddonModDataFieldMultimenuHandler implements AddonModDataFieldHandl
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const fieldName = 'f_' + field.id;
 
-        if (inputData[fieldName] && inputData[fieldName].length > 0) {
-            return [{
-                fieldid: field.id,
-                value: inputData[fieldName]
-            }];
-        }
-
-        return false;
+        return [{
+            fieldid: field.id,
+            value: inputData[fieldName] || []
+        }];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/number/providers/handler.ts b/src/addon/mod/data/fields/number/providers/handler.ts
index fbf3fe68a..62308e6b5 100644
--- a/src/addon/mod/data/fields/number/providers/handler.ts
+++ b/src/addon/mod/data/fields/number/providers/handler.ts
@@ -49,12 +49,9 @@ export class AddonModDataFieldNumberHandler extends AddonModDataFieldTextHandler
      * @return {Promise<boolean> | boolean} If the field has changes.
      */
     hasFieldDataChanged(field: any, inputData: any, originalFieldData: any): Promise<boolean> | boolean {
-        const fieldName = 'f_' + field.id,
-            input = typeof inputData[fieldName] != 'undefined' && inputData[fieldName] !== null ?
-                parseFloat(inputData[fieldName]) : '';
-
-        originalFieldData = (originalFieldData && typeof originalFieldData.content != 'undefined' && originalFieldData !== null) ?
-            parseFloat(originalFieldData.content) : '';
+        const fieldName = 'f_' + field.id;
+        const input = inputData[fieldName] || '';
+        originalFieldData = originalFieldData && originalFieldData.content || '';
 
         return input != originalFieldData;
     }
diff --git a/src/addon/mod/data/fields/picture/component/picture.ts b/src/addon/mod/data/fields/picture/component/picture.ts
index dddf848d3..0c5836efa 100644
--- a/src/addon/mod/data/fields/picture/component/picture.ts
+++ b/src/addon/mod/data/fields/picture/component/picture.ts
@@ -124,13 +124,12 @@ export class AddonModDataFieldPictureComponent extends AddonModDataFieldPluginCo
             this.entryId = (value && value.recordid) || null;
             this.title = (value && value.content1) || '';
             this.imageUrl = null;
-            if (this.image) {
-                if (this.image.offline) {
-                    this.imageUrl = (this.image && this.image.toURL()) || null;
-                } else {
-                    this.imageUrl = (this.image && this.image.fileurl) || null;
+            setTimeout(() => {
+                if (this.image) {
+                    this.imageUrl = this.image.offline ? this.image.toURL() : this.image.fileurl;
                 }
-            }
+            }, 1);
+
             this.width  = this.domUtils.formatPixelsSize(this.field.param1);
             this.height = this.domUtils.formatPixelsSize(this.field.param2);
         }
diff --git a/src/addon/mod/data/fields/picture/providers/handler.ts b/src/addon/mod/data/fields/picture/providers/handler.ts
index a5eab43b0..89abf7009 100644
--- a/src/addon/mod/data/fields/picture/providers/handler.ts
+++ b/src/addon/mod/data/fields/picture/providers/handler.ts
@@ -70,27 +70,21 @@ export class AddonModDataFieldPictureHandler implements AddonModDataFieldHandler
      * @return {any}            With name and value of the data to be sent.
      */
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
-        const files = this.getFieldEditFiles(field),
-            values = [],
-            fieldName = 'f_' + field.id + '_alttext';
+        const files = this.getFieldEditFiles(field);
+        const fieldName = 'f_' + field.id + '_alttext';
 
-        if (files.length) {
-            values.push({
+        return [
+            {
                 fieldid: field.id,
                 subfield: 'file',
                 files: files
-            });
-        }
-
-        if (inputData[fieldName]) {
-            values.push({
+            },
+            {
                 fieldid: field.id,
                 subfield: 'alttext',
                 value: inputData[fieldName]
-            });
-        }
-
-        return values;
+            }
+        ];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/radiobutton/providers/handler.ts b/src/addon/mod/data/fields/radiobutton/providers/handler.ts
index 6efbd744b..a58b407bf 100644
--- a/src/addon/mod/data/fields/radiobutton/providers/handler.ts
+++ b/src/addon/mod/data/fields/radiobutton/providers/handler.ts
@@ -67,14 +67,10 @@ export class AddonModDataFieldRadiobuttonHandler implements AddonModDataFieldHan
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const fieldName = 'f_' + field.id;
 
-        if (inputData[fieldName]) {
-            return [{
-                fieldid: field.id,
-                value: inputData[fieldName]
-            }];
-        }
-
-        return false;
+        return [{
+            fieldid: field.id,
+            value: inputData[fieldName] || ''
+        }];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/text/providers/handler.ts b/src/addon/mod/data/fields/text/providers/handler.ts
index 19d49b713..1a4fa8c26 100644
--- a/src/addon/mod/data/fields/text/providers/handler.ts
+++ b/src/addon/mod/data/fields/text/providers/handler.ts
@@ -68,14 +68,10 @@ export class AddonModDataFieldTextHandler implements AddonModDataFieldHandler {
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const fieldName = 'f_' + field.id;
 
-        if (inputData[fieldName]) {
-            return [{
-                fieldid: field.id,
-                value: inputData[fieldName]
-            }];
-        }
-
-        return false;
+        return [{
+            fieldid: field.id,
+            value: inputData[fieldName] || ''
+        }];
     }
 
     /**
diff --git a/src/addon/mod/data/fields/textarea/providers/handler.ts b/src/addon/mod/data/fields/textarea/providers/handler.ts
index 8ffcdcf4b..1c1a0bc0d 100644
--- a/src/addon/mod/data/fields/textarea/providers/handler.ts
+++ b/src/addon/mod/data/fields/textarea/providers/handler.ts
@@ -50,32 +50,32 @@ export class AddonModDataFieldTextareaHandler extends AddonModDataFieldTextHandl
      */
     getFieldEditData(field: any, inputData: any, originalFieldData: any): any {
         const fieldName = 'f_' + field.id;
+        const files = this.getFieldEditFiles(field, inputData, originalFieldData);
+        let text = this.textUtils.restorePluginfileUrls(inputData[fieldName] || '', files);
+        // Add some HTML to the text if needed.
+        text = this.textUtils.formatHtmlLines(text);
 
-        if (inputData[fieldName]) {
-            const files = this.getFieldEditFiles(field, inputData, originalFieldData);
-            let text = this.textUtils.restorePluginfileUrls(inputData[fieldName], files);
-
-            // Add some HTML to the text if needed.
-            text = this.textUtils.formatHtmlLines(text);
-
-            return [{
-                    fieldid: field.id,
-                    value: text
-                },
-                {
-                    fieldid: field.id,
-                    subfield: 'content1',
-                    value: 1
-                },
-                {
-                    fieldid: field.id,
-                    subfield: 'itemid',
-                    files: files
-                }
-            ];
+        // WS does not properly check if HTML content is blank when the field is required.
+        if (this.textUtils.htmlIsBlank(text)) {
+            text = '';
         }
 
-        return false;
+        return [
+            {
+                fieldid: field.id,
+                value: text
+            },
+            {
+                fieldid: field.id,
+                subfield: 'content1',
+                value: 1
+            },
+            {
+                fieldid: field.id,
+                subfield: 'itemid',
+                files: files
+            }
+        ];
     }
 
     /**
@@ -104,11 +104,7 @@ export class AddonModDataFieldTextareaHandler extends AddonModDataFieldTextHandl
             }
 
             const found = inputData.some((input) => {
-                if (!input.subfield) {
-                    return !!input.value;
-                }
-
-                return false;
+                return !input.subfield && this.textUtils.htmlIsBlank(input.value);
             });
 
             if (!found) {
diff --git a/src/addon/mod/data/fields/url/component/addon-mod-data-field-url.html b/src/addon/mod/data/fields/url/component/addon-mod-data-field-url.html
index f1c018713..90283fe72 100644
--- a/src/addon/mod/data/fields/url/component/addon-mod-data-field-url.html
+++ b/src/addon/mod/data/fields/url/component/addon-mod-data-field-url.html
@@ -4,4 +4,4 @@
     <core-input-errors *ngIf="error && mode == 'edit'" [control]="form.controls['f_'+field.id]" [errorText]="error"></core-input-errors>
 </span>
 
-<a *ngIf="isShowOrListMode() && value && value.content" [href]="value.content" core-link capture="true">{{field.name}}</a>
\ No newline at end of file
+<a *ngIf="isShowOrListMode() && value && value.content" [href]="value.content" core-link capture="true">{{value.content}}</a>
\ No newline at end of file
diff --git a/src/addon/mod/data/pages/edit/edit.ts b/src/addon/mod/data/pages/edit/edit.ts
index 270caa0dc..c311a7137 100644
--- a/src/addon/mod/data/pages/edit/edit.ts
+++ b/src/addon/mod/data/pages/edit/edit.ts
@@ -303,7 +303,7 @@ export class AddonModDataEditPage {
 
         this.jsData = {
             fields: this.fields,
-            contents: this.entry.contents,
+            contents: this.utils.clone(this.entry.contents),
             form: this.editForm,
             data: this.data,
             errors: this.errors