I rebuilt everything, and noticed in the end that I already had those tools. Rebuilding didn't fix the issue of the flying creatures near thunderbluff I pointed out in my first message. I didn't quite got your previous message because I didn't have those problems with the pets, so I guess you weren't up to date :) As I said enabling or disabling mmaps doesn't change anything, so I guess it has nothing to do with them. There's few places in the world where enemies act like this. I'd suggest watching it by yourselves. I'm not at all used to do the movement coding in mangos, although I'm working on it, so I can't do much right now :/