Masonry Gallery Not Working on Browser Refresh

I am having troubles with the masonry gallery not showing the images properly when the page is refreshed. The gallery displays properly on page load but if the page is refreshed on a PC in FireFox and Chrome, it displays all the images on top of each other and only shows a very small portion of the top of the div. Please see link to screenshot to better explain. I also included a link to the page. The masonry gallery is doing this on all pages it is on.