Java Image Loader Acting Differently in Safari & Chrome.

Hey Guys!
My JS Image Loader Acting Differently in Safari & Chrome.

If anyone can help me out with this because neither myself or my other develoeprs can figure out why.

When loading my main site /////lucidhive.com//// front page in Safari the image feed pulling feature posts from other member sites locks in a single column, yet only sometimes.
And when it does freeze clicking on any link then back one step corrects it.

It never used to happen and I cant figure out why its happening only sometimes.

Has never happened in Chrome or Firefox.

Please have a look, and any help much appreciated.

Thanks
M