After killing Majasa in a party of two and entering the next area (to talk to Apophis) the second player to enter (me in the first run, my party member in a second one) got a client freezes in that area (can’t move/act at all, needed a restart of the game client). The character was still in there however as teleport to party member did work.
Unfortunately I did not think to copy the log files at that time and have restarted the game multiple times since then.