"stuck" copied rooms
Copying a room, then cancelling the build order in a way that doesnt bring up the cancel confirmation window (like right clicking) will leave a ghost of the room and wont go away until the save is reloaded
CS Edit: Link to the game files provided by the player. The player also added that "rotating a copied room and then right-clicking to cancel" is most likely the cause of the problem.
Hey Steve, thank you for your patience. I just got news that the issue will be fixed in the upcoming patch.
Best,
Dominik