Right. So, sloppy testing on my part. Mind you, I did take a few extra steps this time to prep a saved figure for WM-ing, but anyway, here's what I did this time:

-- Loaded a dial-spun figure from the library (remember, no PMDs anywhere)
-- Zeroed her (Joint editor: zero rotations)
-- Saved back to library with a new name
-- Remembered I still had the armpit fixes so reloaded her, removed them, resaved her
-- Loaded into WM-Applicator script - ran script

And the above result is what i came up with.

What I did differently this time (working from memory):

-- Actually zeroed the figure... didn't work from some posed, saved .cr2
-- Removed the armpit fixes and resaved
-- Multiple resaves

Please note that I actually did try to convert several dial-spun figures without taking the steps I took this last time with inconsistent results, which prompted me to include what I did in the Guide.

ETA: Posting this at PP...

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