Okay, so I was working on a game project with a friend in cloud edit mode. Now we came across a preeeetty nasty bug that tried to remove/screw up our unions.
When we published the place, I left and rejoined (he was still in cloud edit mode without leaving in-between) and most unions just turned invisible. When trying to seperate them, nothing happens.
Before leaving/publishing:
After rejoining:
Luckily I kept a back-up in another place. I made the unions in the cloud-edit place so I don’t think it has anything to do with the different places.