Thanks for mentioning that tip, Steven. In those cases I would expect the the original aspect to be consistent across all image sizes.
This is at present with IT, at least so far as photos apparently loaded correctly, but where the thumbnail (only) is presented sideways or inverted. There are others where the reverse happens - the thumbnail is OK but not the larger sizes.
In the past these were just deleted and had to be replaced by the member, often to similar effect. At least while the possibility of a site-server fix is still open, I have parked these in the "Holding for Final Decision" category.
It is thought that some of the upside-down images are from smart-phones held inverted (perhaps by left-handed members?!), or from the auto-rorate on some screens which sometimes seems to have a mind of its own