Hover doesn't work when any category is selected

Hey WPeffects:

I bought the pro-version but the only time my website will let me add a hover effect is if I leave the “Select Category” box empty. But this is a problem because, I need 6 different categories of hovers on my website. Whenever I add a category and follow the same steps I don’t see an image at all so I can’t even see a hover effect. Can you help me?

https://www.ads-software.com/plugins/amazing-hover-effects/