Great question, chesapeakeghostwalks! I definitely see what you’re talking about on that page.
I’ve never had such reports from a user. Our products are not set up as exclusionary. (The are hidden from the store by default, but otherwise normal.)
I’m wondering if there’s something going on with your theme? Have you tried changing your theme to a WP default like Twenty Twelve? Did that make a difference?
Have you confirmed that things go back to normal when you disable the plugin? If it is related, that should make it go back to normal.
Hope this helps! 🙂