I had something weird happen to my challenge journal. I got a message that the cooldown for each of my challenges had expired. Now my challenge journal is completely blank. I had just finished NYR and teleported to New York (without crashing by the way) and then immediately to Agartha to fight the golem. I have uploaded some screenshots of the issue:
Edit: I had already completed all my daily challenges by the way.
Update: The issue fixed itself when the challenges reset. My challenge journal is no longer blank, so I think everything is back to normal. I have no idea why I had issues earlier.