Slider Tab Carousel Duplicate Content

At the bottom of my page I have a Slider Tab Carousel set to only show posts from the “Featured” category.

For some reason, a few posts are being duplicated in this console and being put out of order within the console. This only appears to happen on the desktop version of the site, but works correctly on mobile.

Thanks in advance for your help!

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