That’s one of the things with any tablet and the way they auto rotate the screen when you turn the thing around.
Ah, that’ll be it
My phone won’t autorotate to upside down. It’ll only do 90 degrees each way from vertical, but then seems to tag the bottom (well probably not ‘tag’ exactly, but ya know what I mean) so my photo gets posted the right way up
I use an I pad and after much gnashing of teeth I have discovered the only way to guarantee “right way up” pictures. When taking a photo hold your device lengthways so that the shutter is operated by your right thumb (hope that makes sense) any other way will result in what we like to call “photo lottery”
I’ll also add that reposting someone elses photo’s can result in upside down shots.