No idea what the problem actually could be. To me they sound somewhat zombified (that's actually a thing).The CAOS documentation
wrote:
ZOMB (command) zombie (integer)
Make or undo the creature's zombification factor. 1 makes creatures zombies: in a zombie state creatures won't process any decision scripts but they will respond to ANIMs and POSEs. 0 umzombifies.
I have no idea why they should be zombified at all, that's not one of the things that usually happens "on it's own"... Anyways, does it help when you run this command?