I haven't heard anything about it but i was turned into a vampire and now certain cowls, like the masters head piece for the thieves guild doesn't show up on the character. Instead, it looks like i have a bald spot on my head and the cowls invisible. It does this with other cowl pieces but other head armor works fine. Has this happen to anyone?

Its a common bug. Idk of any possible "fix" but you can add another head piece and it will stack its effect but show it instead of a bald spot