I've bought 3 houses. The first was Breezehome. Everything was normal.
I then bought Vlindrel Hall. When I first went in, I saw that everything in the house was marked as stealing if I took it and my bed was marked as owned. I went on to buy Honeyside, and it was the same situation.
I then went back to Whiterun to find that Breezehome is now corrupted in the same way. I have never had this happen before.
Why is this happening and how can I fix it?