I had a boss do this. It was a little awkward because I couldn’t figure out why. There were several groups and we were a couple of minutes in before I figured out that they’d just been going to the same puzzle with different groups.

I still don’t know what that was about, but it made me forget about the room entirely and try to figure out why you’d go through the same one more than once (it wasn’t super interesting, but there were a few neat parts). Another guy just asked for a hint whenever the bosses didn’t respond and that was pretty good.