Infernal Hordes stops spawning monsters after 2 3 waves

In local coop Infernal Hordes on PS5 after 2 3 waves , monsters stop spawning. Even after teleporting to town and back in the dungeon monsters do not spawn and dungeon becomes useless. I have also tried removing coop player but this doesnt work.
This happenes every time I play local coop.

Known bug they have admitted to and working on…

They already knew but no more updates