[2022] Cannot start Poor Little Fellow Mission

I have completed all tasks and collected all the medallions for Hytham and killed all members of the order, but only have 5 of the 6 clues to unlock the father. I have seen that you need to do the Poor Little Fellow but even though Hytham has all medallions he always stays in the bureau. He never goes to the longhouse. How can this be fixed so I can finally complete the game. I have invested a lot of time ( because I like to finish everything I have over 270 hours in game ) and money, of course I bough5 the season pass gold edition.