Portfolio not working properly

Hi,

I’m having issues getting portfolio items to display when clicking on their category. For example we have the category titled Maternal Venous Thromboembolism (VTE). It has two portfolio pieces check marked to use this category. However, on the portfolio page( http://safehealthcare.wpengine.com/safety-action-series/ ) nothing shows up when you click on that category. I’ve searched all settings in the theme options, the visual composer portfolio element settings, and portfolio page settings but don’t see anything that would relate to this.

Can you offer advice for getting the portfolio to display properly?

Thanks in advance!