Right now there seems to be a problem with the gallery. Moderators do not have access so we cannot fix it. Unless someone from Future is bored on the weekend, I bet it will not be fixed until Monday.
I have a saying: Failure is not an option, it comes with all Microsoft products
Joking aside, I find it odd that you could not post a photo without EXIF data, but Nikon may want that to make sure they are from their cameras? Many people purposely strip the EXIF data from the files.
I was not aware of photos going missing since the switch over from PhotoRadar to DCW.