Global Lightbox not working

Global Lightbox not working. If you make a global region, add a button and turn the button into a lightbox. Name the lightbox. Edit the lightbox to be a global region. Then go to another page and call the global region, all elements transfer over but not the lightbox name in the dropdown that was made on the other page. It appears as if a lightbox is not global even though it clearly shows that I can set it to global.
Please note that this happens with any Upfront theme