Help pls.
My scene is rendering upside-down. The image is just flipped. No clue why.
?
Okay, it’s actually not being rendered upside-down, but mplayer is playing it flipped. So, not a problem with blender’s output?
Unless it’s part of the compositor setup another way to flip exports is in Sequence Editor N panel 
Okay, but I don’t have that option enabled. The sequence renders correctly in the image viewer. One of the strips is just flipped when I play it in mplayer. So I’m guessing it’s a problem with mplayer?