Entering Trial of the Sekhemas causes disconnect

I attempted the first trial (quest) during campaign yesterday. Failed at the room before first floor boss. Now every time I try to enter again I get disconnected with a message:

"DISCONNECTED
The terrain generator for the client is out of sync with the server. Please create a new instance and try again."

Creating a new instance, relogging character, or restarting the game didn't help. Tried a few times today, same result. No ascending for me.

SOLVED: I had to abandon/dismiss the "current" run that I hadn't even started (zero rooms cleared), and then start a new one.

I am also running into this issue. To abandon will be a waste of an hour or two as im just entering the 4th floor and this happens.