Unexpected lightbox behavior with multiple custom menu tabs
I have a course with two custom menu tabs, each displaying a slide in a lightbox (References and Terms). When I click on References, the correct slide displays. However, if I click on References again, Terms displays. It'll alternate back and forth between the two slides with every click. The same behavior occurs when I click on the Terms tab.
I've attached a .zip of the working file if you would like to review it.
Also, here's a Review link so you can see it in action: