There isn't much to say, I came across this mod and found a bug, well that what I suspect.
There is a dremora "Oblivion's Fury" that hangs around in morthal until the quest starts at 1 am @ level 38.

The only edits that I have made is set the NPC to initially disabled and add a line to enable him when the script that makes the gate appear, fires off.

The only "issue" that I can see is that the game scales the NPC up and then back down, I don't care to fix this but if someone has a better solution, PM me and I'll upload it.

I have never played this quest mod but this was annoying and I am currently working on a modlist for myself.