I did a flight yesterday and was trying to use the Dji Go app in F-Mode to set up some waypoints. I did this on Thursday with no issues at all. When I tried yesterday, the status indicator at the top of the screen was a different shade of green than usual, and when I switched to "F-Mode" on the remote, it did not work. Usually it instantly brings up your different options in F-Mode, but this time it just stated "Aicraft in GPS Flight" and would not bring those options up on screen. I switched to Litchi, no issues, flew as usual and F-Mode worked just fine. I tried it again this morning, same thing. So I uninstalled the Go app, then re-installed, took it out for a flight, the same thing. Different shade of green indicator, would not go into F-Mode, and Litchi worked just fine. Has there been a change to the Go app in the past 3 days that I am not aware of? Even so, I DIDN'T update my app, even if there was an update available. I have not updated my firmware lately because, you know the drill, I'm scared to death to do it. So I don't know what the issue could be. Any ideas??