CUNY Academic Commons

This is a problem with the Roma theme and the JITP site (jitp.commons.gc.cuny.edu).

Every time I assign a featured image to posts on the main page the alignment of the featured posts changes problematically, and the only way to reverse it is to remove the image (see attached). I have no idea why this is happening. I have even adjusted the image sizes to fit perfectly into the featured image box to see if it is a resizing issue, but no change. I am wondering if this is another problem related to a missing plugin from the theme file folder?