If I go to another app for a minute or I even did it for 10 seconds and it happened. I go to the other app real quick come back and my game has closed. It should run it the background and sometimes it does. I’ve already gone to Netflix and watched a movie and came back and the game was still running. But since the last update it randomly closes when I switch to another app.
I have had this happen on my One X as well when switching out to watch a video or two to take a quick little break from playing.