did 3 chaos runs 2 bricked

first one on round 10 killed final boss but door didn't open.
second run switch disappeared and could get up the elevator.

https://imgur.com/a/DaYjUsX
https://imgur.com/a/kUam44W
https://imgur.com/a/dlhlHoP

not only its the most boring content in the game but it also doesn't work after 2 months.