To reproduce:
1. Connect an Xbox controller to computer over Bluetooth
2. Open steam in big picture mode with Xbox controller
3. Launch factorio with controller
4. When game launches, observe there is no mouse cursor (as expected). The cursor might show while the game is loading but it goes away once at the main menu.
5. Play factorio with no mouse cursor using controller. Everything works fine.
6 open steam overlay while playing using the big Xbox button in middle of controller
7. Observe the mouse cursor now shows (super annoying since on the couch with a controller only. I don't even have a mouse so I can't even move it to the corner)
8. Exit the steam overlay and try playing again
9. Controller works as before, but cursor never goes away no matter what you do
10. Have to restart Factorio
