Three times today I've had the game just get stuck after I die. It's a normal death and then I just stay down and can't redeploy or do anything other than quit the game. One of the times while I was dying I checked the TOW assignments and it got stuck there too. I was unable to back out of that screen, or do anything other than scroll through the challenges.
It's really goddamn annoying and there's no solution for it, as far as I can tell.