Was doing a run of Menagerie. In the Crystal portion, after defeating the second boss in the Crystal encounter, my team noticed a delay in ads spawning, with the timer still ticking. We destroyed all of the crystals and we received the audio cue. After that, nothing happened. Not a single enemy spawned, still with about 20 seconds left in the round. Just silence and all of us running around and picking up orbs. The round ended with no boss or ads spawning. It showed the next encounter, that being The Mockery. The door wouldn't open. We all stood there waiting. Suddenly ads start spawning and then the boss appears, with the mission objective still telling us to go to The Mockery. We killed the boss. Ran around more, door still didn't open. Then black screen, everyone was booted, and I received the "guitar" error.