I played through the game up until the point where Act 4 starts. Durance has been a member of my party all this time, but the quest has not progressed past the following quest description:
I never went through all the dialogue with him until after I realised this at the end of Act III. His special dialogue was present for the piece of the Godhammer, as well as during the conversation with Magran.
But I cannot seem to trigger the quest to continue on. I have tried resting 6 times in the wild, moving from location to location in between each rest. I have gone through all the dialogue 3 times.
Nothing seems to help. Any idea on how to get this quest to continue, or how to manually edit the save file to trigger the next part of the quest?