Live Compass error99

APM 2.6 live compass error 99

I keep getting same error code 99 when I run live compass with compass plugged in and unplugged.
Update firmware to 1.3.7 and still not working, purchase new compass and get same results,

Can anyone help me

when you say 1.3.7 is that the MP version?

if so please upgrade to the latest 1.3.19

Did find a solution? It seems that I do have the same issue.
Is there a way to check by log or terminal if the amp has access to the compass?