Trial of Sekhemas - Terrain Generator for the client is out of sync

I died, put in a new bayra and can't go in. I've retarted, waited a few minutes. Always the same message "The terrain generator for the client is out of sync with the server. Please create a new instance and try again. I've tried clicking to remove the bayra but it just shows the trial rooms map. I clicked the button to end the trial and of course lost the bayra.

Getting the same error as I tried to progress to a new floor of an existing trial. Really hoping I don't lose my key over this!