I`ve bought the celestian furniture packs and in one of them came a celestian cupboard. When I tried to place it, it remained red no matter where I tried to place it (I got the celestial Observatory). I tried inside, outside, and the dorm room, but with no luck. Any suggestions?
There are many things you can't hang in the Celestial Observatory because the walls are all rounded. I've had the same issue here and there with that castle.
My only suggestion would be to float it was a castle wall. But a castle wall piece from the castle building store, or craft one. Place it where you want in your home and then put the cupboard on that. Click low on the wall and pick it up to put in in your backpack. The cupboard will stay floating.