My screen consistently goes very dim while I am flying my Mavic 2 outdoors in sunny/bright conditions. It often starts out ok...but then suddenly goes very dim and I can barely see the screen. On many occasions I have had to hit the RTH button on my remote to get my drone back and end the flight..Reboot the app and start the flight again. I am using an IPhone 7 Plus with the latest iOS 13.3 Is there a know glitch with the go4 app that causes this behavior?