Hi @illustrata

The problem on your site happens because of a 3rd party optimization plugin that modifies the code of the images (as if it was trying to lazy load them) but it fails to add the proper images back to the slider.

We generally don’t recommend using any kind of 3rd party optimization with the slider, because they usually cause problems like this.

I can see that the images are coming from Shortpixel URLs when the images works so I think they might have some kind of lazy loading that causes this to happen. Can you try temporarily disabling Shortpixel and clear the caches of your site (if there’s any) and see if that makes any difference?

Usually optimization plugins have some kind of option to exclude images which have a certain class. We add the following class to all of our images: skip-lazy you could try adding this class for exclusion.