During the finale of Festering Grounds, some of the players respawned in the exit portal despite the finale not being finished. Not all of them did, however.
Steps to reproduce the issue:
The finale has 3 areas where you have to destroy all buboes. I believe the players that respawned wrong were the ones that died after we finished clearing the 2nd area, while the one that died before that respawned properly in the event area. I’m unsure if that’s what actually caused some players to respawn there instead of in the event area, but that’s the only thing I can think of.