Ideas
Just encountered this as well. I have an Asylum household and the werewolf I made bit one of the other patients... who is also a ghost. First of all, he does not have the curse bearer trait, but she got Werebies anyway. And when she transformed, her face was all glitched. Werewolves that were either int he game befroe (Lou, Rory, the Volkovs etc) or ones that I created myself, the most recent being a couple months ago seem fine, but this new one is... horrifying. I turned on CAS full edit, to try and fix it, but no matter what i choose or push and pull on, it's all glitched.
Her needs panel did un-glitch after switching characters and back again btw. and here is the other werewolf in the household, the one who bit her even tho he should not have been able to, as you can see he is fine, aside from having a painted on nose from the nose glitch a while back:
edit - selecting one of the pre-made face presets does seem to fix it