Ok, This is starting to be a weird glitch I am getting. I tried to use the Vault 101 Security helmet for another character, but the name of the helmet didn't really fit what I had in mind as a name for the helmet. So I took the original, duplicated it with new ID and my New Name and added it to my NPC. Now is when the issue comes in. Whenever I put the new helmet on the NPC it appears to be sitting on his head sideways. I don't think it is the npc, since the original sits fine ontop of his head. The new one is exactly the same exept for the Name and ID. And Help would be appreciate.

On the main menu under "Character" there is a command called "Update Facegen Model Availability". Click it.