Every time I update my mod nowadays with the slightest change, my NPC's all start behaving really weirdly. They start falling from the skies at cell 0,0 and some of them start when I enter my worldspace at a far distance from where they're supposed to be. My worldspace is rather large. I do not recall what I did to make this start, I thought it was when I fiddled with makign an in-game map of my worldspace, but even after removing all that work (which resulted in several days of deleted work), this problem persists.
Does anyone have any ideas as to what is happening? A clean save restores it to as it should be, but I can't go around making clean saves for every testgame I want to run, as I test often and much. I cannot live with this problem therefore.