This time around, I built a Trophy Room for my house, Windstad Manor. The first two things I got were the Draugr with the Sword and Draugr with the Bow/Arrow. The sword guy went on the large platform, where I selected him from, and the bow/arrow one went on the small platform. I walked out of the room, and the house, and made some stuff. I came back, and they were both on one small platform, where the Bow guy was. Now they're all glitched together and I generally try to keep the door closed.. Is this a commonly found bugs, and is there a fix?

Well my question is, Why did you get the trophy room in the first place? It's useless.