Sorry, I didn't really understand exactly. In any case:

-Morphs work perfectly on Poser8, no moving around.

-Morphs work correctly when I export them from Poser8, import them into the blank figure on AddMorph (which is an external application that doesn't require Poser), then load that figure in Poser7 or 6, no moving around.

-I can't check if the morphs from the fully morphed Poser8 figure move within Poser7, because those figures crash my older versions of Poser completely, making me force Poser shutdown via Window's ctrl+alt+delete every single time I try to load the figure.

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.