I have apparently managed to do something very strange. I tried to install P4DukeM3. It all did seem to go well until I tried to put some M3 textures on him. The result: Head skin only applies, not eyes, lashes or body.

Then I tried Posette and had the same result. This is the strange part for I had her already there and she'd worked fine on previous occasions. If anyone can help me figure out what went wrong, I'd really appreciate it.