when using blazy to lazy load images with slick slider use this callback to revalidate blazy
<div class="blazy-carousel">
<div class="c-lazy" data-src="images/slide.jpg"></div>
</div>// Carousel Lazyload
var bLazy_carousel = new Blazy({
container: '.blazy-carousel', // Default is window
selector: '.c-lazy',
loadInvisible: true
});
// Revalidate on change
$('.blazy-carousel').on('afterChange', function(event, slick, direction){
bLazy_carousel.revalidate();
});
Thanks :)