I was cleaning up trophies yesterday for the plat, and I was coming out of the elevator in one of the tombs on Zeffo, and the area hadn't finished loading, so I stepped off the edge and fell for like 30 seconds before finally finding oblivion. XD
There's a meditation spot in Darhomir near a stair where two night brothers with bows and one with a mace appear. I can just run through there before they're loaded into the game, or if I stay on the stairs and wait 5 seconds they come in t poses and then I can fight them. Happens every time.