Hi Tom,
Thanks for the file. I changed two things in it. Have a look into your PM-box.
The Cloner Object needs to be below the Mesh, so the processing is in order and the information is available. [Priorities]
The other part, the Random Volume of the object, will change with each pose. I have set it to surface. If the Spheres should be inside, adjust the Cloner Object>Transform>P.Z[negative].
Some sphere, e.g., in the finger area, will show up on the outside. This can be handled with a MoGraph Selection and a Plain Effector: set to “Scale” Uniform>-1
I guess you have perhaps other ideas. If so, please let me know and I’m happy to look into it.
All the best