Daz Studio 4.7 - curious problem when saving shaping presets

Scoopey

Hello there folks,
Just checking if anyone has encountered a glitch like this.

I created a "prop" seat harness that attaches to G2M or G2F like a smart prop. I then created a load of shaping morphs including ones that match full figure types i.e. Monique 6, Lee 6 etc.

Altogether there is something like 30-40 morphs and I saved it as a support asset.

I used the prop in one of my story "series" so figured I'd save myself some time by creating shaping poses for the main characters.
However when I save the "shaping" preset I get an odd problem.

When I use the shaping preset one of the dials automatically sets itself to -100% that was not used in the first place.
I change it back to "0" and re save it. When I use it the second time the shaping preset works OK.

Anyone know why this could be happening? At the moment it's merely a slight irritation but if I make this "prop" a freebie then I can see people getting annoyed...or I'll get an inbox full of people asking why is it happening!!!

Regards
Steve C