I created some standard posts (gallery type & standard type), then directed the test grid to reference them as the source. It's still not working.
My client requires filters for this portfolio page, so the built-in Lightbox won't work.
The Grid author made the below comment in their plugin support forum that indicates it can perform the way that I want it to, but when I posted on the forum, they indicated that you as the theme owner were responsible for supporting it since it came bundled. Can you obtain the custom JS indicated in the post from the plugin author?
Or, we need to get Essential Grid working as advertised.