rFactor 2 has stopped working

I can start the game and play time trials & races fine but most of the time I click exit to quit the game I get an error message "rFactor 2 has stopped working". Any ideas on how to fix this?

 

I think it's a USB port problem; Try changing the port of your device
I had the same problem; And I solved that

 

I don't understand, how does a usb device make the game crash on exit?
I've only had this problem with rF2 after the DX11 beta, rF2 had always worked fine before that with my usb keyboard, mouse & X360 controller.

 

Same problem here but starting the game. In other words: game is not starting at all