I have the Mavic 2 Zoom. I really like the aircraft. However I haven't been able to fly much lately. I am getting a message on the controller MAG INTERF - CHECK APP. I was in an area where I had flown before with no issues. I sent in to DJI and it came back supposedly fixed. I tried to fly again and same message. The aircraft will turn on and then the controller flashes MAG INTERF - CHECK APP. I have packaged it up for another try at a repair. I am using an Ipad attached to the controller. Any suggestions or similar issues. ??