On my balance magus I was doing the Krokopatra dungeon with 2 other people who didn't have text chat. I got caught in battle and menu chat-texted them "One minute, I'm busy fighting." They completely ignored my texts and killed Krokopatra then left the dungeon. The boss never re-spawned so I had to change realms and do it over. Maybe you have to switch realms to defeat that boss. Talk about rude people.