I’ve been seeing it for a couple weeks on every level of dungeon. If at anytime someone changed a gear item or an attribute point while in a dungeon everyone’s damage and damage absorption plummets. An easy m5 or an m8 turns into a nightmare. We run m10s with no problem but for instance, I was in a few mid level dungeons last night where someone changed gear and our damage went from 7k to 1.5k avg and people were getting one shot.
Our tank in one dungeon swapped his hammer before empress and the boss wouldn’t even look at him, I was healing and her life goal was to make me suffer. Tank could no longer hold agro.
I only do dungeons and I’ve had many discussions with other players and friends who has experienced this happening. I feel like I’ve seen it, heard about it enough to bring it up.