Alt+TAB = 1440p→4K

I have a 4K (3840x2160) monitor, but I set BeamNG.drive's resolution to 1440p (2560x1440), but when I press Alt+TAB to switch to another window, and then reenter BeamNG.drive, BeamNG.drive becomes 4K. It's really annoying, because every time I do anything outside of BeamNG.drive, I have to go into settings and select 1440p again. This didn't happen before you changed to DX11.

 

Another thing.

I have a 1080p monitor and i usually have the game fullscreen. If I alt-TAB, then the game goes windowed mode at 1080p. Then when I make the game fullscreen again, it defaults to 4k and the UI scaling turns the UI into a UI for ants. I have a GTX 970 with DSR capability (render higher resolutions than monitor is capable of and then downsampling to monitor resolution) if that makes a difference.