I joined a random party in the Amber Lion Gate today at approximately 5:50 PM MDT (23:50 UTC Sunday, April 17, 2011). I spawned at the entrance elevator on depth 11. The party leader, Dasouleadter, was apparently disconnected and I did not see an indicator on the minimap for his location. Since he had made some progress in the dungeon before disconnecting, it became impossible for me and party members who joined after me to continue due to an activated party switch gate blocking the path.