Hi, I’ve been using the timeline today and have nearly finished but it has suddenly gone blank and errors pour out whenever I’m on the tab and try to click anything on it. I attached screenshots. It still plays fine in game but I can’t edit it anymore on the editor because of this
You can try closing the editor, deleting the Library/Timeline folder, and reopening it. That might fix it, or at least reset the timeline to not show the curves which is possible where the problem lies. I’d also recommend filing a bug.