So I was getting ready to fly and my DJI GO4 app was acting weird, it kept closing before I could take off. I was running some diagnostics. Then I noticed it was just updating on its own, on the ipad. I waited, shut everything down and rebooted and restarted. Then I had to do the test. I opted to skip it. Got up in the air just 20 feet or so and the opened DJI GO4 app just shut down and closed. I opened it up again, while it was in the air. Decided to land, and start over. The app kept closing on me while in flight. I would open it up while in flight and the video was still recording. FInished my short flight 15 minutes and shut everything down. DEcided to take the test, but it kep shutting down and I had to open the app and retake the test. This happened three times. I got up to question 8 and it shut down and then never asked me to take the test again. I had all 8 correct so maybe that was enough. LOL. But still came home and just turned everything on, no take offs and the app continued to just shut down for no reason. I have OS 11.1.1 (15B150) and have held off updating to 11.2 as updating sometimes causes problems. I have not updated the database request from DJI either. Any thoughts on this problem?? It just started today and was working perfect yesterday.