Even though the new WordPress upgrade tells you that your image did not pass the upload test, it is sucked into the Media Library, from which you can pull it out by it’s url. Sounds kind of graphic, doesn’t it. I did not know this for two days. I kept trying to upload from my computer and was rebuffed every time. But, you can work around this if you enter it with the url it has been assigned when it somehow sneaks into the Media Library. Or maybe it is Shanghaied and wakes up to find itself there.