Sek trial bug

A buddy and I were playing a sek trial. We were just starting the 3rd floor when both of us were disconnected with an error "The terrain generator for the client is out of sync with the server. Please create a new instance and try again." We tried to create a new instance but of course, we aren't able to do that anymore. Anytime I attempt to do the trial, it kicks me to the menu and says the same thing.

I'll try again in a couple hours to see if the instance resets to see if that works.