In ATC mode as a approach controller.
3 times this occured for me at a total play time of about 40min app freezes for 2-3 sec and then closes. It seems that this happends when I give altitude change. Means at the moment I press the desired altitude I want to give to a player, app end up crashing.
last one was; responding to flight following -> proceed on course -> give vector -> altitude -> 15,000 and then game froze for 2-3 sec and then closed.
I never played as an approach controller before very much so this problem might have been for a time with my device.
Samsung galaxy note 10.1 2014 edition. (P605)