Okay, sorry I can’t help you directly, but we’ve just got this under control on Liftoff!, and the secret is to raise an issue asking your devs to “bake in the photo orientation information from the EXIF data as Lemmy strips that EXIF data from most images on upload”. That should give them enough info to solve it, if not tell them to look at out source code 😄.

If that sounds a bit too technical, just give it a few days and most apps will get this under control. In the meantime, if you stick to photos you’ve taken in portrait mode, you should be fine.