Updated both DJI Go 4 app and the new Litchi app. Yesterday late afternoon still encountering problems with a number of issues. First flight - mission failed to maintain centering on Focus POI. Camera pitched up half way through mission. Aircraft yaw was normal. Second flight - Failed to load new mission. Third Flight - Camera focussed at about 2 meters while sitting on ground, then when elevated 2 meters, distance was blurred. When using C1 programmed to Centre Focus after elevation, it briefly focussed and then went back to defocus. Landed manually and close objects where it had originally focussed were in focus. Fourth flight - Flew using DJI Go 4 app. Elevated to 2 meters and focussed using C1 centre focus. Very sharp and rest of flight as manual great video. Fifth flight - Elevated 2 meters, blurry focus, tried to focus using C1 but would not even momentarily focus. Decided to run mission anyway. No sharp focus for entire mission. C1 inactive as far as I could tell. Focus POI did not work as supposed to. Yaw of aircraft was tracking correctly but camera pitch angle completely wrong. Attempted screen infinity focus but did not work. Finished mission and it RTH correctly. As on another post it is suggested to toggle PAL/NTSC camera function to reboot the camera. Seems like a silly way to get things to work and it seems Litchi has a long way to go to get the app to work on the Mavic Pro.