Images disappearing from the Art Library

I posted a help request for this (ticket #479877) but I'm wondering if anyone else is experiencing this: I noticed a few days ago that some images were missing from my art library; that their links in my user-created folders were showing the "broken image" icon and when searching for them they were not in the "recently uploaded" section. I though I may have unintentionally deleted them, so I just erased the broken links, re-uploaded the images and fixed the handouts where they were used. Today, I found more "broken image" icons in my user folders and saw that several of the tokens used by my players were blank, and several more images that I had placed on pages were now  invisible (although still selectable using window select). So, why are images getting deleted from my art library? It's certainly not due to lack of storage space in my account:

Hey RIck! This is almost certainly a case for a  Help Center Request . This would do well with the team's eyes and expertise.

No doubt. I only posted this (with my ticket number) in case anyone else was experiencing it.

You're not the only one, I had the same thing with the broken images, and all my map pins were gone 

I just spent 4 hours re-uploading images, redefining tokens, redefining multi-sided tokens and fixing map pages.

Rick A. said: I just spent 4 hours re-uploading images, redefining tokens, redefining multi-sided tokens and fixing map pages. I have had this issue on and off for the last four months.  I look for an uploaded image and it is broken, no image appears.  Tokens on maps suddenly are broken images.  It happens only occasionally and usually I have time to delete and upload again.  

Rick A. said: No doubt. I only posted this (with my ticket number) in case anyone else was experiencing it. Derp. I read right past that.