The latest JP Update from the Dev Team appears to say they have no clue what is causing these crashes that still persist. Linkshell events are having to be cancelled due to an inability to trust that their members wont magically vanish in the middle of the fight either causing a loss for the group or their member to miss out on spoils. NNI is risky to attempt as the time sensitivity of the run cannot afford for a DD to DC in the middle of the run especially since some of your lamp floors require they be in attendance.
If you dont know what the issue is you have one of two options. You roll back the entire update because something you did blew everything up. Option two you refund our subscription fees for the time the game is unreliable/unplayable. I have experience in the software field and this is not acceptable behavior for any company. I dont mean to be rude moreso I am intent on being blunt. My life in game was a million times better before this update and what you instituted I didnt want/need and can live without for the duration of my remaining time in the game. It would be nice to be able to play the game again.