was in a light party doing

https://ffxiv.consolegameswiki.com/w...Temple_of_Qarn

white mage here, and I've done this dungeon a few times no problem. Today was in a group that didn't know the mechanics and we eventually all died on the terrible first boss cause folks didn't understand the debuff mechanic. the problem is that I couldn't release and was stuck in combat, with combat music. the group ran back, started fighting the boss again, I got a res and started playing and then it seems the debuff (and tile floor light up) mechanic was out of synch. died again. same problem.

finally exited the game because I couldn't release.

Is this as designed, or did I encounter just a terrible bug in the game?

Thanks for any light you can shed here. I was terribly frustrated by the situation.