Yikes! That’s a bit of a mess, isn’t it?
The easiest fix would probably be to change them back into humanoid form for the purposes of dialogue and back again when you leave (without expending a charge). That might not be “correct”, but I think it would be better than seeing nothing expect a mass of feathers and eyeballs from the camera being inside an owlbear model.
(Sorry if it’s been said before, I did a search, but couldn’t see a topic).
