cleaned up imports, mobx observable initialization and some compile errors.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/client/views/collections/CollectionStackedTimeline.tsx b/src/client/views/collections/CollectionStackedTimeline.tsx
index fb8bc4da2..fa3844aa4 100644
--- a/src/client/views/collections/CollectionStackedTimeline.tsx
+++ b/src/client/views/collections/CollectionStackedTimeline.tsx
@@ -20,7 +20,7 @@ import { ScriptingGlobals } from '../../util/ScriptingGlobals';
 import { SnappingManager } from '../../util/SnappingManager';
 import { Transform } from '../../util/Transform';
 import { undoBatch, UndoManager } from '../../util/UndoManager';
-import { CollectionSubView, SubCollectionViewProps } from '../collections/CollectionSubView';
+import { CollectionSubView } from '../collections/CollectionSubView';
 import { LightboxView } from '../LightboxView';
 import { AudioWaveform } from '../nodes/audio/AudioWaveform';
 import { DocFocusFunc, DocFocusOptions, DocumentView, DocumentViewProps, OpenWhere } from '../nodes/DocumentView';
@@ -56,7 +56,7 @@ export enum TrimScope {
 @observer
 export class CollectionStackedTimeline extends CollectionSubView<CollectionStackedTimelineProps>() {
     @observable static SelectingRegion: CollectionStackedTimeline | undefined = undefined;
-    @observable public static CurrentlyPlaying: DocumentView[];
+    @observable public static CurrentlyPlaying: DocumentView[] = [];
     constructor(props: any) {
         super(props);
         makeObservable(this);