Lightbox opens on first image

Design help General
1

Hi folks,

I’ve got an issue with my lightbox/images - they open; but always display the first image regardless of which one you click on and I cannot for the life of me work out why.

Just navigate to any of the projects and you’ll see what I mean when you click on the images.

Any help is much appreciated.

Here is my site Read-Only: LINK

3

Does nobody have any idea why this is happening? Doesn’t seem to happen on other people’s sites.