I'm happy for anyone who uses Parmatic and who does or doesn't have this problem to chime in, here. I've tried saving and then installing saved parameter dials with the MAT files in place on different characters and I keep getting the same result.
Anyone?
Or, barring making the pz2 behave correctly, is there some way to add the contents of the saved parameter dials (that pz2) into a MAT file so that it saves the user a step and puts the dials in the appropriate location?

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks