SO basically, 2 of my Khajiit caravans don't walk anymore. One of them just stands there outside of Riften, and the other one with Risaad in it, they've set up camp outside of Markarth...except there are no goddarn tents:

http://i.imgur.com/Ty0dfsi.jpg

Someone PLEASE PLEASE tell me how to fix this. I'm not aware of any mods I'm using that would cause this, and this issue had been plaguing me for weeks now, and it's only just gotten worse since risaad decided ti become lazy and park his ass permanently

Anyone? Please, this bug is very immersion breaking for me

I would suggest starting a new game with no mods just to be safe. If the problem is gone, you may want to do some trial and error to find the offending mod.

A modder could've accidentally broken the script for them, I suggest posting your load order and having someone with modding experience take a look at it.