CinemachineOrbitalTransposer problem

Hello! I run into a strange situation when using CinemachineOribtalTransposer with CinemachineTargetGroup.
If I set OrbitalTransposer with “lock on with world up”, and “manual” to TargetGroup’s rotation mode, the camera will rotate very fastly around the TargetGroup.

And there is another strange phenomenon, in Scene view, the TargetGroup’s gameobject was rotating, but in Inspector view, the rotation value didn’t change.

Can you show the virtual camera inspector and the scene hierarchy, with the vcam and target group visible?