Images not appearing on smaller screens

I’ve been working on this page today. Loads fine on desktop. Just happened to try and a small screen size – less width – and some of the images disappear. Just have image holders. So tried on iPhone. Same thing, the images aren’t loading, they just have placeholders. Any ideas?

Actually, 2 images do appear. They are portrait orientated. All of the normal landscape images aren’t loading. They all load fine on desktop.

• This topic was modified 4 years, 8 months ago by pt44.

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