Template Styles not working in Theme Builder

I created a Custom Style for Posts in the Loop Section of Theme Builder and I wanted to apply it to an Archive template I created elsewhere in Theme Builder. The widget works, but when I check it on the live site, the styles I created appear for a split second, then go away and get replaced by default styles. So the Gravatar is too large, the font sizes are all wrong and so on.

Is there a fix to this?

The page I need help with: [log in to see the link]