I almost completed AC:B but the game suddenly stopped tracking trophies. For example, I just discovered the shrine in Saint Peter's Basilica (which should unlock the Amen trophy) and nothing happened.
What's even more frustrating, though, is that I wasn't awarded with any of the other trophies that are unlocked by completing the main storyline (e.g. completing Sequence 8).
Is there anything I can do to make my game load the missing trophies without having to restart it from the beginning?