Lightbox 1 -> Lightbox 2 link not working / content loaded incorrectly



I am trying to show visitors Lightbox 2 after they click on CTA in Lightbox 1.

When I try to link a CTA from Lightbox 1 to Lightbox 2, on click, I see that the size of the window changes to the size of Lightbox 2, but instead of getting the content from Lightbox 2, I see the content of Lightbox 1.

Any idea why this is happening?

Thank you!