Unable to select bones in scene view

More Detail about this bug: The problem is related to location. if I add U Motion to a child object. This bug will triggered.

OK, I found what cost this. If a bone is in a collider, I can't select it. All triggered and none triggered colider and character controller can make bone inside unable to select.

Hi,
thank you very much for your bug report.

I tried to reproduce this issue by adding a box collider to the robot kyle character in the UMotion example scene (in Unity 2021.3.11f1), but the bones could still be selected (even if they are inside the collider). There might be further nuances to that problem that cause this issue. Could you try to re-create this example in a small fresh Unity project and send it over to me?

Thank you very much.

Best regards,
Peter