Hi woohoogle,
I have checked your website and I have found the problem. There is an error with the categories names in the portfolio. For example, the button ‘Pairs of Socks’ has the data-filter ‘pairs of sock’, but the images have the data-filter ‘pairs-of-sock’. I will fix this problem in the next update.
Meanwhile, you can fix it changing the categories name to one word, or some words with hyphens.
Regards