Today, after updating and uploading a photo gallery page built with Gallery Stack (example: Latest Finds—March 2025), I noticed a problem that I cannot seem to resolve. The page loads as it should and presents a gallery of thumbnails. However, when clicking on any thumbnail the larger image does not load, and the following message appears: “The image cannot be loaded.” Another weird thing is that the other (old) gallery pages which were not changed now have the same problem.
I am stumped, as I have changed neither the stacks nor any of their settings on the page/s (which previously worked fine). I simply make a copy of the old gallery page, replace the pics with new ones and upload the new page. Stacks configuration of the pages: Gallery 3 > Grid: Flexbox > Lightbox: Magnific Popup.
Any ideas or help with solving this would be greatly appreciated. And please excuse me if I have missed something obvious—I am very much an amatuer at this. Many thanks!
Update: I tried republishing all files (a few times), without success. Also noticed the same problem/behavior in RW preview mode.