TOILET BOWL on changing the gps module (same compass)

I am having a drone which is running stable on RTK as well as pos hold. Recently we changed the GPS module (sky track) and the drone has started to perform toilet bowl. mag field as well as interference data is clean.
Firstly we were thinking that the toilet bowl is because of mag issue. But the same mag (AK8963) is giving stable performance on on u-blox m8p.
PLEASE CAN SOMEONE LOOK INTO THE LOGS
URGENT.
https://drive.google.com/file/d/1hNUI_8hCHmvhKrCfCpwQ-kF_DqBWhUGa/view?usp=sharing

Is it the same compass? Or is it two compasses with the same model?

If it is two compasses did you re-calibrate it? Each calibration is device specific, not model specific. There is no such thing as identical devices.

same compass. already did inflight calibration. (very strict).
no compass variance.