I completed the Duality dungeon solo after many painstaking hours of dying to the imaginary architects, and the trophy did not pop for me. I was error coded out of the game at one point, and then finished the dungeon after logging in the next day. I did not join any other people, and no other guardians joined me at any point from start to finish. I am really, really upset about this as there have been so many bugs this season. Please help.