PhilC, currently I am tweaking settings of existing morph packs that I already had loaded into V4. I'm getting this just from changing settings with the head selected.

Admittedly, I do have a lot of different morph packs loaded in the figure, including S4, Morphs++, Ultra Aging Morphs, NPM etc etc. Maybe they don't like each other. But I've had them in for a while. I don't remember this thing happening until recently (the latest service pack?).

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3