1 files changed, 9 insertions, 8 deletions

diff --git a/src/client/views/nodes/VideoBox.tsx b/src/client/views/nodes/VideoBox.tsx
index 9cf929679..34dcde23b 100644
--- a/src/client/views/nodes/VideoBox.tsx
+++ b/src/client/views/nodes/VideoBox.tsx
@@ -3,7 +3,8 @@ import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { action, computed, IReactionDisposer, observable, ObservableMap, reaction, runInAction, untracked } from 'mobx';
 import { observer } from 'mobx-react';
 import { basename } from 'path';
-import { Doc, HeightSym, StrListCast, WidthSym } from '../../../fields/Doc';
+import { Doc, StrListCast } from '../../../fields/Doc';
+import { Height, Width } from '../../../fields/DocSymbols';
 import { InkTool } from '../../../fields/InkField';
 import { List } from '../../../fields/List';
 import { ObjectField } from '../../../fields/ObjectField';
@@ -14,6 +15,7 @@ import { Docs, DocUtils } from '../../documents/Documents';
 import { DocumentType } from '../../documents/DocumentTypes';
 import { Networking } from '../../Network';
 import { DocumentManager } from '../../util/DocumentManager';
+import { FollowLinkScript } from '../../util/LinkFollower';
 import { LinkManager } from '../../util/LinkManager';
 import { ReplayMovements } from '../../util/ReplayMovements';
 import { SelectionManager } from '../../util/SelectionManager';
@@ -33,8 +35,6 @@ import { FieldView, FieldViewProps } from './FieldView';
 import { RecordingBox } from './RecordingBox';
 import { PinProps, PresBox } from './trails';
 import './VideoBox.scss';
-import { ScriptField } from '../../../fields/ScriptField';
-import { FollowLinkScript } from '../../util/LinkFollower';
 const path = require('path');
 
 /**
@@ -111,7 +111,7 @@ export class VideoBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProp
     // returns the presentation data if it exists, null otherwise
     @computed get presentation() {
         const data = this.dataDoc[this.fieldKey + '-presentation'];
-        return data ? JSON.parse(data) : null;
+        return data ? JSON.parse(StrCast(data)) : null;
     }
 
     @computed private get timeline() {
@@ -354,8 +354,8 @@ export class VideoBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProp
     updateIcon = () => {
         const makeIcon = (returnedfilename: string) => {
             this.dataDoc.icon = new ImageField(returnedfilename);
-            this.dataDoc.icon_nativeWidth = this.layoutDoc[WidthSym]();
-            this.dataDoc.icon_nativeHeight = this.layoutDoc[HeightSym]();
+            this.dataDoc.icon_nativeWidth = this.layoutDoc[Width]();
+            this.dataDoc.icon_nativeHeight = this.layoutDoc[Height]();
         };
         this.Snapshot(undefined, undefined, makeIcon);
     };
@@ -465,7 +465,7 @@ export class VideoBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProp
                 { fireImmediately: true }
             );
 
-            (!this.dataDoc[this.fieldKey + '_thumbnails'] || this.dataDoc[this.fieldKey + '_thumbnails'].length != VideoBox.numThumbnails) && this.getVideoThumbnails();
+            (!this.dataDoc[this.fieldKey + '_thumbnails'] || StrListCast(this.dataDoc[this.fieldKey + '_thumbnails']).length != VideoBox.numThumbnails) && this.getVideoThumbnails();
         }
     };
 
@@ -870,7 +870,8 @@ export class VideoBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProp
                 }),
                 returnFalse,
                 () => MarqueeAnnotator.clearAnnotations(this._savedAnnotations),
-                false, false
+                false,
+                false
             );
         }
     };