Hi! Can you upload the screenshot?
Also what is your system?
Also, latest versions of UE5 (which I use) require latest versions of graphic drivers. Make sure you have them!
looks like there is some issure between your GPU and post processing in the game. Hall map uses different post-processing settings, so it might explain why it works fine, when other maps don`t. Can you also try to set graphics settings to potato mode? That will probably turn off some of the effects. Meanwhile I will try to understand which part in partucular makes the difference.