We have a rate limit on images, but that wouldn't explain all of them failing.

There is a also a size limit, but I don't think you hit that. I'll try to peruse the logs later.

Edit: I had a look. It's bloody weird. We use an application to handle image uploads/storage/serving, etc.
For some reason, the first record I have is of it issuing a delete command for your image.
I'm sure it's not you, but I am very curious what happened now lol.
Were you using the web interface, or a mobile client?