I was able to start this quest, but not finish it. I killed the guy the quest giver waned me to after finding what he wanted me to, but after the fight I can't speak to him. He's just standing there with no option to talk to him. I've tried fast traveling, I've tried loading and reloading. Every time I go back I can't talk to him. I can't reload a save from before I took the mission because I'd lose 50 hours of progress including the end of the main story. This is the only thing keeping me from finishing the region and getting everything finished for all the regions which is incredibly frustrating. Please either fix or advise.
This issue has been reported and is under investigation by the team.
I do apologise for any inconvenience caused.
For future reference, issues with Assassin's Creed Valhalla will need to be reported via the new forum here.