What could cause the #2 compass to fail in my Mavic pro..

[JohnnyD913]

When I fly away from homepoint and keep straight the compass readings r great…
Once I rotate the Mavic and is now facing me, I get compass and magnetic interference messages..
Any thoughts

Also I just replaced the gps module.
If that matters

 

[slup]

This could possibly indicate that something on your MP have become magnetized. If so, then that spot have it's own mag. field direction which subtracting or adding to the earth mag. field depending on in which direction you fly, making the total mag. field go outside an allowed threshold value in certain heading directions.

Have you tried recalibrating the compass... and is this happening in a certain cardinal direction or is the flight away from the HP the trigger?