Love this transition effect, when a Scene Collection is set up properly, it can add an incredible level of polish to a stream!
Is there any way that it could work with elements of Grouped sources? Say, a large cam source for viewer interaction in one scene, which is a Group member element in another scene (example: fullscreen camera<->camera frame+camera+drop shadow grouped)?
Also, sometimes a Source will act like it doesn't exist in a destination Scene, so will zoom-out of the start-scene and zoom-in on the destination scene. I have been unable to reproduce what causes it, but deleting the Source from one and re-adding it via Copy from the source scene will usually fix it for a while; unfortunately the same source will 'break' and start doing the zoom-out/in again some time later.