I was playing Infinite Flight in Solo Mode on my dad’s iPhone 6. He had set an alarm on it which went off halfway through the game. When I clicked OK, I realised the game had frozen. I tried clicking the screen nothing would happen. I was not too sure if this was a bug or not.
It seems to have been an issue ever since the update that brought out the ATC feature. Things that interrupt the app (phone calls, alarms etc) freeze it. Would be great to have this fixed.
I think this happens with most games to be honest.