Silder Problems

So I have been working on a web site off and on for a while which is located at doehrmann.com and recently the home page slider started having the slides go blank as they slide out of view. Anyone else had this problem? I can’t find any solutions for it. I do have a child theme, but if it is deactivated it still happens. I have tried deactivating all plugins but that doesn’t work either.

Thanks!