Just ran into a glitch and would like to see if anyone else has the problem. I received the priest mask from the one College quest. The bonus was great so I put it on. Then I got the archmage robes and thought "Wow, I look awesome!". I just reloaded my save after a break and now I have no head. The archmage robes hood is there but no head. When I remove the robe I have the mask on and when I remove the mask with the robes on I have a head. Possible solution on Bethesdas part could be to code it to get rid of the masks hood when you are already wearing a hood.

I'm having this problem too. Only thing making me angry about is that I can put on one of the dragon priest masks, the one I don't like, and it shows. But when I put on the one I do like my head disappears. Don't know why but sure wish it would get fixed.

Haha. I had this problem as well. Someone pointed out to just reload an old save.
So just save where you are and reload it, it should be working (like for me). If it happens again then that is all you have to do. I normally just go and "Continue" the game, and not load the save, continuing it probably didn't help the fix it.

It seems to be pretty random for me. It'll change sometimes when I go into a dungeon and come out or fast travel. wish it was fixed though. Love the mask.

I've found two of these masks and had the same problem with both when wearing any hooded robes, even tried reloading an earlier save but the problem still develops. Will give for a solution.

I think it's just going to have to be patched or something. I have a theory but i might just be dumb. when wearing any hooded robe and trying to equip any other helm or mask it unequips the robes. Maybe we're not supposed to be able to equip a mask with the hooded robes? so it just glitches the graphics out? I still get the bonuses but I like having the awesome mask on for aesthetic reasons.