Hi Thanks for getting back to me.
The problem is not on my website, that is just fine. The problem is within wordpress itself. When I log in to wordpress admin and go to galleries, it shows a list of all my galleries and how many images are in each.. When I then click on individual galleries and they open, they show as empty.
They display fine on my website, but because within the admin pages I cannot see the images I am not able to reorganise my work.. They show fine in the media library?
It is not the plugins because I am only using two HTML sitemap and media tags, I have deactivated these and tried reactivating them, I have also reinstalled wordpress 4.2.2 and I have also checked on a pc to see if it was something to do with my mac..
The last time I added images to my website in April there was not an issue, this is the theme I am using http://themeforest.net/item/core-minimalist-photography-portfolio/240185 but like I say, the problem is within WP itself and not the theme…