Okay, CoSo, why did you only rotate two of the images? That third portrait-mode one has a "rotate" EXIF tag, just like the other two, and you had no problem rotating them.
Twitter didn't have this problem with the same image...
@MrGoat Yep. I've had this happen with a few posts. Only seems to happen on mobile.
@ehurtley same, @th3j35t3r When uploading Photos from Android (idk about iPhone) they get rotated the wrong way.
@MrGoat @th3j35t3r This was from iPhone. (Better camera than my Android.)
@ehurtley is a bug I think, on mobile yeah?