Yes, blitz sim force closes the game 5+ times a day and exits to the phone home screen. Choosing characters in the squad menu in blitz force closes the game multiple times per day as well.
You have so many bugs I don't even know which one is which.
Also doesn't help that support does not reply to any ticket. Going on 32 days with an open ticket and no reply. I can't even open more tickets until you acknowledge my first ticket and close it.
Specifically which device are you playing on, please?