http://forum.square-enix.com/ffxiv/t...-client-lockup
I did A9 3 times this week. First time it locked as usual, got my reward cooldown. Second time i put it on borderless window, did not crash. Third time i put it on fullscreen, did not crash again but while i was in queue, my Controller would hang a couple of times. It would stick in a past state of the controller and not update with what i'm doing now. So i would basically run into a wall or the cursor would skip to the end of a list.
I really thought the borderless window would solve it. Not quite sure what triggered it though, maybe A9 has to be off cooldown. I have a dual display. That could mess up in any number of places. That is essentially what i meant to test.