in the guys flats the backround is just darkness. i can still see them and the things they iteract with but i cant see the wall

Hi, 
You must be playing on a emulator (BlueStacks)
It's a bug of the emulator, not the game. Sometimes, reinstalling the emulator fixes. 

Don't worry. Your game is fine. To make sure it won't happen again, we will make some changes in the next update (hotfix) so you can enjoy the game with no black background!