Went to fly a 9wp mission but there was no map, standard or sat so I tried to fly anyway. It flew the 9 waypoints but when I tried to take over after the mission the aircraft went nuts. No apparent control. Looked very much like a fly-away. In a semi panic I switched to P mode with no result. Then I shut litchi down and started DJI GO. Hit RTH and recovered my flight. Pretty scary anyone have any idea of what might have caused this issue???