Some images no longer appearing; media library dim

So this website has been finished for a while. I am guessing an update of some kind is conflicting with the media library; however I tried disabling all of the plugins and the problem still persists. All of the images appear on the site appear fine except for two. They appear in the edit page area, and the mouse changes to pointer on rollover, but the user cannot see the image. I have tried re-uploading the images. No luck.

The media library functionality also appears to work as it should. I can see the images and select one to insert, but the library itself appears dim, so there is something wrong. Any ideas? The website it TotalVoice.net. If you scroll below the icons on the right, you can see your cursor change and the link works. But the image does not appear.

Thanks!