Compass EKF value exceeds 0.8 when flying in the air

The value will be higher when the aircraft is turning in the air
The mag_field value is approximately between 307 and 580
using Cube Orange Here3
Firmware 4.0.5
https://drive.google.com/file/d/1Dk6rOSOKSUZRxB85cpZKQIfxG_eWw2C_/view?usp=sharing

After I recalibrated the compass, it was normal again