Hi everyone, I'm currently working on a script, a part of which allows the user to select an AnimatorClip (as a TimelineClip in an AnimationTrack) he wants to record again, and then creates a "ghost" of that object with a copy of its AnimatorTrack. Second track is the one that is copied, fourth one its "ghost" copy At the end of the recording process, the "ghost" AnimatorTrack has to be deleted. While destroying the "ghost" GameObject functions properly, I get this result by using the TimelineAsset.DeleteTrack method : The thing to notice is the "remaining of the track" on the Timeline. As long as it's here, i get these three errors that gets repeated each time I try to interact with the Timeline : First two don't point to any part of the script when double-clicking them, and third one points to the Unity Editor window itself through the Inspector. A simple Ctrl+Z removes this "remaining" : And another Ctrl+Z is needed to make the track that has been deleted appear again, even though "Edit - Undo" directly makes that track appear again. This all seems to be a problem of refreshing the Timeline after the track has been deleted. Any advice to give ?