Hello everyone, I hope you can help me !

I've started the quest "the path of knowledge", and everything was ok.

But in the boiler room, after I turned on all 4 boilers and lowered the water level, A bridge fell in the middle, and neloth yelled something a dwarven centurion, and entered combat mod (sheathed his spells).

There was no dwarven centurion, but there was a "station" in wich they become "alive", so I guess thats the bug that started it.

So here I am in that room, and neloth is stuck in his place in combat mode, not following me.

so i tried to kill him and then resurrect him in console, didnt work...

so the only option left for me was to disable him, and then summon him (place at me) in the Black book room, that worked, and he talked with my about what happened...

Now is the annoying part. HE DIDNT LEAVE NCHARDAK. no matter what, even after I killed miraak.

when I returned he started to say "let me have a look at you" and then just walked away.

So i disabled him there, and summoned him in Tel Mrsjksakj (Forgot his house name ><) and he seems ok, he can sell me stuff and train me. but I saw in the UESP there are some quest he can give, and I can see any dialogue option for something... is this a bug? what can I do to fix it?

Sorry for long post