When I export from Premiere via Media Encoder for some reason it ignores the rotation on certain clips. I have clips from my timeline that were filmed on a phone in portrait mode - they are rotated 90 degrees so that they are portrait in the landscape timeline, with a blurred background behind them. When I export via Media Encoder for some reason they are a small landscape clip in the middle of the frame.
Why is Media Encoder ignoring the rotation I've done on the clip? This is really annoying because now I have to slowly export using Premiere and can't queue up any exports. More bugs!
Sorry for your issue. I understand you are getting an incorrect export preview when you export the file using AME.
Let us know if it works.