First image hover on gallery grid wont work

Hi im having a problem on the gallery grid in the the portfolio sections iv created on my site. each of the the first ligtbox and images have been set been set to position 1 1 1 1. After I set them to that the hover effects stop working. This is only in the before and after, business cards, posters, flyers, logos, menus, miscellaneous, packaging and publications.

heres a photo of the gallery grid.

and heres a link to my site

Here is my public share link: LINK
(how to access public share link)