The custom hands that follow with the Unity Example project seems to have a problem with the bone & collider structure. The pivot and collider of the pinky finger (left hand) and middle finger (right hand) seems to be placed wrong (see pictures).
Has anybody meet the same problem and maybe have a solution?
I'm submitting fixed hands for an upcoming release. In the meantime, for the broken middle finger just 0 out its y. For the broken pinky, copy the values for the 3 broken colliders from the other hand. Thanks for the bug report!