Images aren't showing unless I resize browser window

The hero images that I have set aren’t showing up on the published site and only show when I resize the browser window. This happens in Chrome, and I’ve cleared the cache and all that. Just wondering if anyone else has an idea? Or if it even does the same for you?

I’ve had a look in safari and doesn’t seem to be an issue there (though the gradients are showing a bit lighter there)


Here is my site Read-Only: [LINK]1
(how to share your site Read-Only link)