Hover effect

Hi, There is no hover effect unfortunately. However, if it’s a video you can use the “automatic thumbnail” feature (thumbnail with a play button).

https://www.tipsandtricks-hq.com/wordpress-video-lightbox-plugin-display-videos-in-a-fancy-lightbox-overlay-2700

Hi,
I would very much like to do this, however, it gives me a blank (black) thumbnail with the play button. No matter what video I post. Any thoughts on how to get it to do a thumbnail? Or add an effect to my thumbnail? Thanks.