Lightbox not working in Safari

Hello, I’ve a problem with my site lightbox not working in safari - it works fine in firefox however in sfari the lightbox won’t display on some of the pages, it’s not all the pages just some of them. So not sure what to do, thanks

Examples below

This page works

This page does not

Thank you

Seems to work for me. Maybe Safari’s cache?

thanks, just checked on someone’s macbook and it’s fine on there, just not on my desktop - saved me a lot of fiddling about in sparkle. Thanks again.