Hello Tom,
first of all: great plugin! And now with the pro-version and ajax-load-more it should have fitted all my requirements… but I got the same problem: after clicking the load-more-button no images are loading – just white space… All images are implemented by the theme’s isotope-media-gallery – no lazy loading activated.
Example without AJAX-loading: schmitz.oth-aw.de
Example with AJAX-loading: schmitz.oth-aw.de/blog-2019
I’m using WordPress 5.1, Uncode Theme 2.0, WPSPPro 1.0 beta – no caching plugins installed