Compass Indications with v3.27

[ClaudeDive]

Hello Matthias
I updated my OSTC 3 #2430 to 327_FR_3_cr_ostc3_firmware.hex. Thanks for the update.
I calibrated the compass twice in all three axes in open fields on the grass.
I noticed significant instability when placing the compass on the ground in the grass, facing due north.
Once stabilized, the reading for due north varies between 45° and 135° after repositioning it several times.
Is this a problem compared to v3.27, or is it something else?
Thanks for your reply,
Sincerely, Claude