This is interesting because I notice Irfanview is also having a bit of trouble with photo rotation lately. Irfanview has always been excellent, but in recent weeks, when I edit an old photo and save it, Irfanview is saving it in its original sideways or upside down format. I've also noticed on a couple of Facebook groups I'm on that a few sideways photos are appearing. If it wasn't for my problem with older photos, I would have suggested that recent phone software upgrades may be the problem.