Cannot enter 3rd trail for Sekhemas, getting Disconnected

Cannot enter the third trail. Everytime I click to enter it, I get DC with message - The terrain generator for the client is out of sync with the server. Please create a new instance and try again. Restart of the game does not help. Creating a new instance also does not help. Upon loading the map for Test of Cunning, the displayed instance is Trail of the Sekhemas followed by dc.