Thanks, Y-Phil. The settings did look odd (-860,000 and +860,000), but changing the numbers to 200 didn't help, even when trying to move 200 in one goes. The prop stays in the same place. Anyway, the hair strand props had the same settings, and they move fine.

I think I'm probably going to have to give up on this one, and go back to using other people's skullcaps. I tried reparenting the hair pieces to 3Dream's MSC, but then the hair room no longer recognized it and it only renders the basic strands.

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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