screenshot section in "read more" section does not work correctly

To reproduce:

• clear browser cache
• open the "read more" section of for instance the "banner" feature
• click on the right section of the screenshot

Expected: the carousel moves to the next item
Actual: nothing happens

Also, when clicking on the images below the carousel, they do not load immediately. When you click a few, they open after a 5 second delay. Once they are loaded, the carousel behaves ok again.

Experienced this in both Chrome, Safari, IE11; Firefox does not seem to be affected. Don't see any errors in the JavaScript console.