I am on ps4 if it helps.. I am DC been to daggerfall many times (that’s where I do all my crafting deconstructions) went to the harborage talked to Tharn Lilly and the prophet and he won’t appear. I remember before one Tamriel the minimum level was 30.. I have even teleported to a Wayshrine far away from daggerfall and rode into town to see if it’ll kick start and nothing
Edit: Resolved:
Solution: If you have quest: demon weapon active you cannot start “Tharn Speaks”