This is the setup that works well with Antonia 1.3, old texture, and ADP001 PrincipledBsdf shader; everything else is my own creation.  The image below it is a Superfly render, nothing abnormal about it.

Now, when I replace the Poser Image_Map node with the Cycles Image_Texture node, the body part renders black.  In this particular example, I only changed the Diffuse map node, not the specular or bump nodes.

Something has changed in the behavior of that particular node and how it interprets Antonia 1.3's mapping, at least, that's what I'm guessing.  This needs to be verified by someone else on a different system before any conclusions can be made.  This is an oddity that doesn't show up in other models.