My mission is also in a Class-D zone...
What I did last mission:
- Switch on Remote
- Start DJI Go 4 App
- Switch on Mavic
- Wait for GPS...
- Take-Off MP... I get the Class-D warning, have to tick 2 options and confirm...
- Start GSPro
- Load/Edit Mission, select Fly Mission...
- Then you get some options, one of them is to switch off sensors (if I'm correct), the other one is to unlock NFZ. I only unlock NFZ
- Start Mission...
MP flies to startpoint and Mission is started... (all the time DJI Go 4 app is in the background active).