I recently started using my new iPhone XS Max with a Mavic 2 Zoom. No set up issues all works just fine but I have have noticed on the main screen the video feed doesn't utilize the full screen width, close to a half inch is black on both the left & right sides. If I bring up the map the entire screen is filled just fine. Have I missed something or does DJI need to optimize the DJI Go 4 app to utilize all fo the 6.5' screen on the iPhone XS Max? See photo below. 


