Why does the masonry grid work partially?

Question

css

Why did the first elements work and the blocks were placed correctly, while the rest did not?

var $container = $('.masonry-container');
$container.imagesLoaded( function() {
  $container.masonry({
    columnWidth: ".image-box",
    itemSelector: ".image-box",
  });
  $(".image-box").imagefill();
});

Answer 1

Vanguems...:
1. The last elements in the new div.
2. Somewhere in the console you got an exception, but you didn't show it to us.
Still, I'm leaning towards the first one.