NPCs wander too much
Using Ace's nightly 0.40.0 17455821 Ra'Zhid in Fatleg's Drop Off wouldn't stand still for longer than it took to play some idle animations which made it pretty hard to complete this quest http://en.uesp.net/wiki/Morrowind:Ra%27Zhid%27s_Dwemer_Artifacts
I could be wrong since it could just be random bad luck, but he seemed to move a lot less using the vanilla engine.
(RM-3581 from redmine: created on 2016-10-05 by Evil Eye, , closed on 2017-03-23 by scrawl ., duplicates #3640 (closed))
Edited by redmine