Hello

Thank you for your query.

Please add the following css rule in custom css section

.sp-simpleportfolio .sp-simpleportfolio-item:hover .sp-simpleportfolio-overlay {
  opacity: 0;
}

Hope this helps you!

Nothing changed... still blurred

Could you please provide your administrative access? Use the hidden mode to share the log in credentials. If you could also share a screenshot of the image that is blurred, that would be very helpful for me. You can use the tool to share the image: https://imgur.com/

I'm working offline but you can take a look at the screenshot (https://siteout.it/images/screenshot.png)