Hi smith cart,
Version 4.21.
Variant help URL mouse-hover shows the product details page, rather than the actual target URL. Clicking on the variant help URL icon (the blue question mark) works, but it's confusing for the user. This is a new problem - it was previously fine in 3.96.
I have replicated this on your www7 test site - see Test Prod 1.
Thanks,
Daniel.