There's a Bug in Lazy Load
There is a bug in the latest version of Lazy Load by WP Rocket.
Following some big changes to my website, I cleared my cach in my Safari and Chrome browsers, on my iPhone.
When I went to load my website in both browsers, super fast load, but no images, at all!
I'm not sure if this affected desktop browsers, but it may do. I fixed the problem and left it at that.
Uncheck the box "Images" in your Lazy Load plugin, as shown below, and images will be downloaded and displayed as normal. I hope this gets fixed soon.
The latest version of Lazy Load was only two days ago.