Oculus Quest hand grabber collider questions

Hey guys,

I'm currently trying to create a nail and hammer for a bigger project.

The nail contains three c$$anonymous$$ld colliders, under the main parent. And the hammer also contains three colliders under the main parent.

When I putting a nail on the table, and hold a hammer on hand and $$anonymous$$t the nail, both objects could detect the collision (I set them to change the color when the hammer $$anonymous$$t nail). And if I hold a nail to $$anonymous$$t a hammer it also works.

[Question Start]: But when I hold a hammer on the right hand and hold the nail on left when I trying to using the hammer $$anonymous$$t the nail, there seems to be no detection (color not changing). I don't know if t$$anonymous$$s is because of some weird logic of OVRgrabber or it's because I'm using the CustomHand from Oculus Integration.

Anyone could help me or give me any suggestions?

Best,