Don't know if anyone has had this problem before but my group managed to get unlucky with it during a run. We just hit a Lamp Code floor and right as we hit it one of our members started to disconnect.

We went and hit the lamp when he was gone and it wouldn't let us go up. There really needs to be a fix that if someone disconnects they don't count as one of the people that needs to hit the lamp. It was basically a waste of a good 5 minutes before the guy could connect again and ruined the run completely.