Same. He was on the ship, talking to himself about skull dust or something, then, after patch 3, he relocated from the deck of the ship to the gates of the graveyard, still babbling about ingredients, but nothing I have found will get him back to the ship. I even decided I would try to teleport him nearer the ship, only to have him (understandably) agro. We fled, came back, and he had new dialog about not consorting with the likes of us, then we bribed him, and all was fine. But sadly, even after all of that, he just calmly walked all the way back to the cemetery gates to look for skull dust.
