Wordpress (share for facebook and tumblr) do not load all images

I am working on a theme that shared buttons installed on it like pinterest, facebook, tumblr etc…

Pinterest seems to pick all the pictures in wordpress just fine but tumblr or facebook only pick the first 11-12 pictures, the posts have way more pictures as the site is based on pictures.

I tried using the tumblr bookmarklet and also having the share button on the site but nothing helps.

At first I was thinking this was a javascript issue as Pinterest was not working at all and it was a problem with Jquery.

The owner likes to be able to select from all the pictures and have researched on Google facebook and tumblr but have not been able to find any relevant information, has anyone experienced this and if so is there anything I can do to fix this?