No, it's not that. Not that simple. People at work have explained it, too many conflicting devices? They correct it for me usually. But THL should just have the simple change through 90 degree button to press.
Only started to happen when I bought a Chromebook thing by accident. I know how to flip images, but no matter how many times I flip them, and save the copies, as originals and delete the others, and view as correct orientation, they upload to THL upside down or pissed 90 degree.