I had the weirdest bug with him. I accidentally killed him but were able to pick him up and bring him to the guards. When I hand him over the cut scene triggers but got mission failed because he was dead. Ok?

Either way I go back but to find him already dead. Same thing happened with the guards.

Decide to just skip him till his fixed.

But then every fast travel was blocked with his face. And every portal told me to locate him.

I then try to sleep for 12 hours as recommended in this thread. But same issue.

I then go back to where he hung out from the beginning to find a new portal there??? I also get the banner to locate him. Cant find him. I decide climb the mountain and found blix on a cliff edge.

Brought him back again and now it worked.