I have a Phantom P4 Pr (V1). I use drone deploy a lot. Flying Mapping missions, , I saw a "Compass Error" on the drone deploy screen. In Dji Go - prior to the mission I checked the compass and it reported Ok. I went into the compass setting and rechecks- (OK ) and performed a an IMU calibration. I went out and flew another mission. I did the coverage check in the dronebase app and the coverage a bt spotty. I flew the mission again with my mavic 2 pro and it was much better. Does this mean my compass board is suspect? Thanks for any help.