Hi Neil, I’m like you, thousands of images, especially as I work in publishing and design, but in my case, it’s not just photos, even screenshots get rotated. And yes, if a folder is untouched, all is well, but if I open it in Explorer, it might happen—not always, just sometimes. I can even go for days with it being OK, but then one day it’ll start doing it again.
Here was my earlier thread on it, and you can see some screenshots getting rotated (not just the thumbnail, sadly, but the entire file). There’s even a case of one image being rotated 90 degrees, I took a screenshot, then it rotated another 90 degrees later (i.e. upside-down), and I was able to take a second. If there were a flag, it would have done a single rotation and been “happy”, but File Explorer kept doing its “magic”! (It’s my last entry in that earlier thread.)
I looked into similar threads to the ones you posted when the problem first surfaced for me, but as I know screenshots and even JPEGs generated by InDesign wouldn’t have orientation flags, I don’t think they’re the cause of the problem.
It’s only happened for me since Windows 10 became 11.
Maybe I need to look into Event Viewer to see what is happening? Assuming I can find the event itself.