[Bug] Yaw estimate error with Holy bro kakute h7 v1.3 with Px4 1.15 stable

[airsimdevdd]

Describe the bug

i flashed my kakute h7 with px4 1.15 and connected a holy bro m9n gps with compass to it via sda scl its yaw estimate is very unstable and jumps off by 180 degrees and i get many errors in qgc regarding it like yaw estimate error , heading not stable , it is yawing in stablized mode too

To Reproduce

1. power on th drone
2. connect it to qgc
3. u can see heading estimate error and heading jumps off suddenly

Expected behavior

heading must be stable not jump by a large scale

Screenshot / Media

Flight Log

(https://review.px4.io/plot_app?log=91b58dac-435a-4084-a2d1-98895afe679b)

Software Version

PX4 1.15 stable

Flight controller

holy bro kakute v1.3

Vehicle type

Multicopter

How are the different components wired up (including port information)

compass is connected to sda scl port of fc

Additional context

No response

[federicociresola]

Have you tried using the previous stable version 1.14.4? Just to understand if there is a problem with the PX4 version or your setting

[bresch]

The log is missing a lot of topics. Are you sure the compass is correctly connected? Check the output of listener vehicle_magnetometer in the mavlink shell of QGC