Thanks Mike for the guidance. I had assumed this was the issue and had considered not looping the layerslider. I wanted to wait until my hunch was confirmed. Thanks!
So do I just copy/paste the code at the end of the php? I did that but it crashed my site. I had to go through the backend (siteground) to fix it. Any specific guidance on where to place this code is appreciated.
Thanks Ismael. I tried your suggestion (adding a description to the image link) but no wording appears under the video when it plays in Lightbox. Let me know if there is any other way to do this (maybe CSS). Thanks.