I'm not sure if it is even related to this but this is when it started occurring. After the new Windows 10 Creators Update slowed down my computer I went back to a previous build of windows. I'm currently playing a game with a mod that is only updated for version 2.6.2 so I have the game on that version on steam. Basically what is happening is that when I try to launch the game in any version but the latest (I have tried with version 2.6.2 and 2.6.3) the launcher goes full screen and then closes, and the game does not run. Is anyone else having this problem and is there anything I can do?