If your pictures are not labeled prior to upload (you chose to snap pictures when posting directly from your cell phone) the system automatically labels them as image-1, image-2, etc. If you have a previous ad or ad(s), this can sometimes create a conflict because your user profile has multiple images named the same thing, so it defaults to the original image-1, image-2, etc. If you encounter this issue, the easiest way around it is to take your pictures first to ensure they are in the gallery on your phone and labeled prior to submitting an ad and uploading them.