Possible Bug?

[Harichi]

Hi, I'm a Skyrim player, and I think I have found a bug. I am wearing the mask 'Krosis' that Krosis dropped, I'm also wearing the jagged crown. If I try to wear another head item, I can't equip 'Krosis' or the Jagged Crown while wearing that item still. And yes, it still gives me a better armour rating still. You can't see the Jagged Crown on you, though.