A 1920 x 1080 export should have a 1.0, square Pixel Aspect Ratio, not HD Anamorphic of 1.33.
If the frame in the cap of the exported clip is the same as the frame
under the CTI in the cap of your sequence, then all the layers seem to
be messed up. Not only is the bottom(?) layer cropped in some way, but
at least one of the other layers is rotated 90 degrees.
What transitions are you using for the clips on layers 2-4 in the
sequence screen cap?
Thanks so much fellas, I appreciate the prompt response.
It was indeed the pixel ratio causing the problem, which is an issue I should have figured out much quicker.
The reason some of the layers were exporting (at least seemingly) correctly, was because they were intentionallly scaled up and rotated.
Changing to square pixels fixed the problem 100%. If anyone is a fan of the band, They Might Be Giants, feel free to take a look at the finished product! http://www.youtube.com/watch?v=dPnXpiUuuL0 (note: the pixelation error at the beginning was left in by design).
Good catch, Jim. I missed the frame size/PAR mismatch the first time