If I add a simple part into my workspace, on game start it is deleted. All new models and parts I add into my workspace are all deleted when I press play. The old ones remain. If I duplicate a model or part already in the workspace, it stays. I noticed this because the only part in the workspace (everything else is in models) was deleted every time I pressed play. The July 16 13:07CEST version works fine, then the 21:23CEST does not. I didn’t make any major changes in this time. When I go back to that version, it works fine again.
Is it possible I wrote some kind of weird line of code during this time?
I’m pretty sure this is a bug, but I don’t know where else to write this
Did you perhaps try to Publish your games, or are there any scripts that are deleting parts? You might want to debug by doing this in a new game, to see if this is happening for all games or just yours.