Some images are not showing on website.

Hi, I am using a Twenty Seventeen child theme. WordPress version 5.0.3. I have searched the forum and online and unplugged plugins but cannot find a solution that works.

My Photoswipe Masonry Gallery plugin is acting strange.

On the pages where my gallery appears in the text editor, certain .jpg images are not showing on my site. They are there when I create the gallery in the text editor but they do not show on the site. I have deleted the photos and uploaded them again from my pc but still the problem is there. Many of the images are .jpg’s of paintings and the ones that do not show are actual photographs.

I recently upgraded from PHP 5.6 to PHP 7.2 and updated the Twenty Seventeen theme. Could this be why it’s happening and if so, is there a fix?

I assumed the plugin would be compatible with PHP 7.2 after checking my site with the PHP Compatibility Checker plugin which informed me that Photoswipe Masonry Gallery was compatible. It is also compatible with my wordpress version.

Any help would be appreciated.

The page I need help with: [log in to see the link]