1 files changed, 18 insertions, 22 deletions
diff --git a/src/client/views/animationtimeline/Track.tsx b/src/client/views/animationtimeline/Track.tsx
index 274b215d9..3ec410216 100644
--- a/src/client/views/animationtimeline/Track.tsx
+++ b/src/client/views/animationtimeline/Track.tsx
@@ -32,18 +32,24 @@ export class Track extends React.Component<IProps> {
     @observable private _onKeyframe: (Doc | undefined) = undefined;
     @observable private _onRegionData: (Doc | undefined) = undefined;
     @observable private _storedState: (Doc | undefined) = undefined;
-    
-    @computed
-    private get regions() {
-        return Cast(this.props.node.regions, listSpec(Doc)) as List<Doc>;
-    }
+    @observable private filterList = [
+        "regions", 
+        "cursors", 
+        "hidden", 
+        "nativeHeight", 
+        "nativeWidth", 
+        "schemaColumns", 
+        "baseLayout", 
+        "backgroundLayout", 
+        "layout", 
+    ]; 
+        
+    @computed private get regions() { return Cast(this.props.node.regions, listSpec(Doc)) as List<Doc>;}
 
     componentWillMount() {
-        if (!this.props.node.regions) {
-            this.props.node.regions = new List<Doc>();            
-        }
-      
-        
+        runInAction(() => {
+            if (!this.props.node.regions) this.props.node.regions = new List<Doc>();            
+        });
     }
 
     componentDidMount() {
@@ -54,11 +60,11 @@ export class Track extends React.Component<IProps> {
             this.props.node.hidden = false;                   
             this.props.node.opacity = 1; 
         });
-
     }
 
     componentWillUnmount() {
         runInAction(() => {
+            //disposing reactions 
             if (this._currentBarXReaction) this._currentBarXReaction();
             if (this._timelineVisibleReaction) this._timelineVisibleReaction(); 
         });
@@ -166,17 +172,7 @@ export class Track extends React.Component<IProps> {
         });
     }
 
-    private filterList = [
-        "regions", 
-        "cursors", 
-        "hidden", 
-        "nativeHeight", 
-        "nativeWidth", 
-        "schemaColumns", 
-        "baseLayout", 
-        "backgroundLayout", 
-        "layout", 
-    ]; 
+ 
 
     @action
     private filterKeys = (keys: string[]): string[] => {