I haven't tried this, but it's just an idea...before saving your characters in Poser, give their shared clothing items different names. For example, on the first figure, leave all the default names. Let's say that the shirt is called "Shirt." When you save the second character, select shirt/body and change the name to "Shirt2." Do the same for all clothing items that share the same names. Extra work, but if it works, it's worth it, and would be less drastic than deleting your P4 executable file. I had a HD crash this past week and haven't re-installed Vue4 yet, so I regret that I can't test this for you before making the suggestion. It's just a hunch based on how Vue seems to interpret texture application. Good luck!