Thank you so much!! The code was already using Flickity lazyload, but I didn't know how to change the number of images loaded. I found it, thanks to you and it worked perfectly 

I'm using a customized version of Dawn that includes a Flickity carousel for product images. Anytime I add more than 4 images, the 5th image appears as broken until the carousel is engaged with (either swiping or clicking the arrow on the main image)...