I'm having some strange things happen with Lightbox.
I added a Media Gallery to my page and they should be opening in a lightbox format. When I purge my caches, open an
incognito window & click on the first image it opens correctly in Lightbox. However after the first image if you try again it immediately opens into a new separate page by itself.
This is the page I am working on. You can see the Media Gallery about halfway down the page, with three columns and two rows.