Nice event choice ZOS \o/
4 people in group, correct roles, same location and instance:
"Someone declined" "Someone declined" "Someone declined" "Someone declined" "Someone declined" etc
Why does it even put you in a queue if there are 4 people? Just do a group composition check at the start of the code and start the dungeon if it passes the checks. How is this a problem still?
If this is (somehow) impossible, just make the last boss of the dungeon drop the box for this event, at least so we can play it and get rewards.