At the time of upload all images are checked to verify that they are of the same pixel resolution. They all have to match. That is all that is going on here. It doesn't haven anything to do with what you are shooting because the uploader doesn't know anything about the content of the images, just the tags info.
In general, we don't recommend orbit flight that is collected with the aircraft moving sideways. This is specifically warned against in the Data Collection guidelines and usually leads to excessive processing times and sub par results.