Hi there,

Thanks for following up!

I appreciate you sharing your findings. That's really great.

Best,

Chris

The problem was that, with Jetpack Photon activated, the width and height is not passed in the the_post_thumbnail... This is a 'necessary side-effect of using Photon':
http://wordpress.org/support/topic/jetpack-photon-breaks-core-function-wp_get_attachment_image_src

So... I wrote a small plugin - to avoid change the theme code - to output the width and height of the thumbnails even when Photon is activated. For those who may have the same problem as me, here is it:

<?php
/**
 * Plugin Name: Photon Masonry Fix
 * Plugin URI:
 * Description: Fix masonry grid layout when using Photon.
 * Version: 0.1
 * Author: Américo Dias
 * Author URI: http://americodias.com
 * License: GPL2
 */

add_filter( 'post_thumbnail_html', 'remove_thumbnail_dimensions', 10, 5);

function remove_thumbnail_dimensions( $html, $post_id, $post_thumbnail_id, $size, $attr ) {
	$jetpack_active_modules = get_option('jetpack_active_modules');

	if ( class_exists( 'Jetpack', false ) && $jetpack_active_modules && in_array( 'photon', $jetpack_active_modules ) ) {
		// Photon is activated...
		if( '' != $html ) {
			// the post has thumbnail...
			$metadata = wp_get_attachment_metadata($post_thumbnail_id);
			$width = $metadata['sizes'][$size]['width'];
			$height = $metadata['sizes'][$size]['height'];
			$html = substr($html, 0, -2) . "width=\"$width\" height=\"$height\" />";
		}
	}

	return $html;
}
?>

Hi!

Thank you for this great theme. I really like it.

I've done some modification to feet my needs and everything was working good. Although, when I activated the Photon service from Jetpack (a service to use WordPress cloud to serve the page images and increase loading speed), I noticed I have an overlap on the images when the page loads. After loading if I resize the browser window or if I reload the page, the images go to the right place.

I also noticed that you are using the Masonry version 1.3.2 when the last version of this script is the 3.1.4. Theres is any reason for that?

I could not correct this problem by myself, so I would like to ask you if you have any idea how can I solve this problem. My page URL is the following:

http://americodias.com/viewfinder

Thank you in advance,
Américo