i have the same issues too. but if just hit refresh twice 'at one time' it clears it up. has to do with all the dang ads all over the place. my company blocks certain ads and if those are up then my page loads funny.
The images are all served from our cloud servers which are located around the country. I turned off the cloud systems so that the images were only pulled from our local server.
I am guessing the one CDN server for your area is having issues or has a corrupt cache of its own. So I might have to rebuild the cache for the entire CDN.