"Mike, Mike, Mike!" he murmured understandingly, graciously waving his flagella.
(With apologies to Rudyard Kipling's mama jaguar in "Just So Stories" - in his armadillo origin story.)
Oh. I thought you wanted him to turn your computer on it's side.
"Greg, Greg, Greg!" howled the angry crowd, graciously waving their torches and pitchforks.
The real answer is that unfortunately, there are more than one ways that software can designate the orientation of an image. Your software is not entirely thorough at setting both consistently. You can easily rotate the image in your windows browser, or using other software. Naturally, you can check the result on FAA to see if the upload files are shown properly. But Explorer has the ability to browse, view, and rotate in a way that FAA will recognize.