Home page layout strange behavior

Hi, I'm setting up a new web site with your WP's Clean Journal Pro theme and I found a problem which I hope you can help me to solve. It's in the home page. When I'm customizing it, I can see properly in the beside screen all the category posts arranged in scroll with their short text and its excerpt featured images correctly, but when I save and close the customization menu, the home page shows the posts titles only. The image and text paragraph are gone. (As you can see in www.amptadv.es) What do you think am I doing wrong? Thanks in advance. Martin