Compass auto rotation

After performing a Compass calibration with COMPASS_AUTO_ROT,2 , in Mandatory HW/Compass i find the external Compass with yaw 270.
But It has no orientation…
Anyone knows the explaination of this?
Many thanks

(pixhawk 6C, Mission planner, pixhawk 4 external Compass/GPS)

Same problem, same hardware, maybe faulty mag sensors? Or bug?