X2.1 and M8N Compass Error?

Ground Control Software Mission Planner
1

Hi, sorry for the noob question, but In Mission planner, How can I identified all the different MAG present in my system. My understanding is that I have 1 MAG on the X2.1 and 2 on the M8N. … maybe I am wrong… please Help me. Everything is fine, except for Compass Errors…
X2.1 and GPS are mRo hardware.

2

On Mission Planners HW ID screen after connecting.

3

Good day, what kind of compass error do you have?

4

Be shure both are pointing in the same direction, I disabled the internal one

5

… just notice the HW ID screen… thank you!