In Diablo cut and in the Cavern of the Cresent Moon, all the undead monkey, npc or mob, is glitched. They look creepier than they used to be. I know it wasn't my computer because I was doing the place with my brother and he expierenced it on his computer too. It's like their leg bone is part of their pants, one of thier fingers is the wrong color (kinda black and purple vs the bone white color). You should look closely at them.