I'm currently using an older version of Reshade (2.0), but I'm not seeing a difference with this issue whether or not I use it. I see I did some further testing and the issue seems to go away temporarily when changing from windowed fullscreen to fullscreen, but then comes back again after a alt-tab / game restart. :( These processes does not cause any interaction with my window focus. I have disabled Focus assist in windows 10 build 1803csrss gains focus last since that was when I killed the game.