If a player disconnects during the world boss and there are too many players present, upon loading back in it'll seem to try to load all players even with hide players on, and cause it to disconnect again. For me personally, it doesn't normally disconnect. But when it does, it prefers to never let me back in.

To fix this, players who disconnect during the World Boss should respawn at the node spawn point. Like if they died, but without the penalty of course. This will also ensure players don't get possibly killed if they happen to reconnect at the exact time the boss uses their strongest attack.

Hopefully an easy solution. I don't know what it'd take, but I thought I'd throw out the idea anyway.