Remove compass still get compass glitch?

What could be the reasons that without a compass I still get compass glitch?

When I fly the message comes gps as imu0, my imu not working properly?

This is my log

I suspect there is a bug. I understand ardupilot isnt the best for flying acro but I just highlight what I found.

When I do a power loop 360 pitch, the imu gone disorientated. Then compass glitch start coming out. I suspect that’s the issue,