I get only one timer, for the whole dungeon. It no longer splits it into timers for 1, 2 and 3 chests. I have completely uninstalled and reinstalled, and it still does not work. It used to work, so I am not sure what happened. I do have Astra Keys installed, the only other mythic+ related addon, but I do not believe there is a conflict.

not sure what causing the problem at you, but for me it works

Same issue for me