Lightbox effect overriding the gallery thumnail link

From the plugin overview: “By default, any Lightbox or other onClick events on custom links will be removed to allow them to function as regular links.”

I have a page with a gallery where the lightbox effect is overriding the WP Gallery Custom Links link behavior. As an alternative I also added the link to the caption so people can get to the link.
http://www.coastalartsguildct.com/members/

I didn’t see any of the attributes to modify the shortcode that would fix this. Any ideas?

https://wordpress.org/plugins/wp-gallery-custom-links/