@justbugreportin I haven't been able to reproduce your issue in my game. When I attempt to move the room, the game simply deletes the stairs if I move the room too far away from them; it does not leave them behind. I tried it in a variety of ways with no luck. Are there any steps you took that are perhaps not included in your post? Would it be possible for you to record a video of your process and post it?
Also, if you haven't already, please take these steps: 1) remove all mods/CC, 2) clear your cache, 3) repair the game via Origin, 4) start a new save, and 5) test the issue in the new save. This rules out corruption, whether from mods/CC or other causes.
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