This can happen because of the Exif data embedded in the picture files. Our system attempts to automatically correct the orientation of the photo based on this data. This issue generally happens when the camera is upside down, or when the camera thinks it was upside down.

If you would like to fix it, correct the orientation in a photo editor of your choice prior to uploading. This can usually be done right in the photo editor built into the smartphone used to take the photos. You can then re-upload the corrected photos and hide the old photos on your listing photos page. You can also reorder your listing photos by dragging and dropping them as you see fit.