Recent Agents – Style 2 – Images Disappear on Slider

Hello,

I am using the recent agents slider on my homepage to showcase our team. I am showing 3( switched it to 4 to test) at once, when it slides past the fifth person, all the agents' featured images when they come around again are just a white box, until you get past the 3rd (or 4th) person, and then the images pop into view again. It works if you slide it back to the left manually, they will disappear until you come around back to the beginning.

I have tried deleting all agents and their images from media in wordpress, and rebuilding them. I have tried showing more  or less columns of them. Nothing works. Help please...