So I've been trying to figure this out for a few weeks now, but the 4th message, ESPECIALLY for Vesper's Host, seems to have bugged out completely for me, and the puzzle will not even spawn. Everything else has been working perfectly fine, but the fourth message and its puzzle, in particular, refuses to spawn. I don't know what I did to cause this bug to happen, but this is heavily game-breaking, as it prevents people not only being unable to get the second secret chest without a friend that has completed the quest without it bugging out, but it also prevents them from being able to get the Catalyst for Icebreaker. Is there a fix for this that I can do to stop this bug from happening in the first place so it can spawn? I've tried everything now. I tried carrying someone who'd never done the dungeon before, and the message did not spawn. I tried changing to a character that's never done the dungeon before; I tried reloading the instance, and I even tried having a friend be a host that's done it before, hoping the puzzle would spawn. Update: I already have the 4th puzzle completed, supposedly. It just hasn't given me the credit for doing it. Update 2: I have figured out the fix for this bug. FOR THOSE THAT ENCOUNTER THIS BUG, YOU WILL HAVE TO CARRY SOMEONE THAT HAS NOT DONE THAT PUZZLE YET, AND THEY WILL NEED TO BE HOST.