Why the aircraft does not use RTK data for navigating while RTK positioning solution is fixed?

The positioning solution for RTK contains the single point, floating point and fixed point. The aircraft may not use RTK data for navigation while the RTK positioning solution is fixed. The very basic reason is the reported coordinate from RTK module differs to the GNSS module, then the aircraft does not believe the reported coordinate from RTK module. The possible reason can be:

1. The RTK is connected but user hasn't setAircraftRTKModuleEnabled. Thus, the aircraft will not use the RTK data for navigation. Please ensure to call this method before starting the motor.
2. When the RTK positioning solution is fixed, the coodinate changes rapidly in a short time period or the RTK source has been changed(custom network RTK and base station RTK), the RTK base station has fallen. The aircraft will not use the RTK data in the entire flight. You have to land and reboot the aircraft.