I'm not surprised that it is working, actually. I was expecting to find that to be the case.
The auto fill details come in from the image itself, which stores all that information in what is called "Exif data". But if the information is missing from the image, then ATP can't find it. Some cameras and some software packages will remove the Exif data. It's likely that if you have the autofilled area empty after uploading an image, then that means the image itself was missing the info.
