display forms in featured content

Hi, I would to like to display forms in our featured content. We are using the version 4.3.1. When I insert a site with an contactform7 formular into the featured content, there are no <input tags in the source code. I seems like a filter. But I can't anything in style.css, or catchresponsive-featured-content.php. How I can display pages with integradet forms in featured content? Thanks an best regards Bernd