This skeletal mesh, specifically the fingers, lags behind the posing of its armature. If the last bone in a finger chain (IK_fingerXY) is moved, the bone does not remain centered in the mesh.
The finger mesh behaves as if it were parented to two bones, instead of one. How can a section of mesh have two parents if it always follows the movement of the similarly-named bone?
The .blend file can be accessed via http://home.cfl.rr.com/rtgroup/pranayama-0016.blend.
I have fixed the permission problems which prevented others from accessing the .blend file.