1080HD movie exports automatically as 720? Why?

Hey, all. I finished editing my latest feature film PUNCH ME HARD and once I exported it, it automatically was 720p rather than 1080 which it's shot in. I looked in the sequence settings and the frame size is 1080x720p HDTV (16:9). However, when I upload trailers from a duplicated version of the same sequence -- it uploads 1080 just fine. Kinda stumped. It's not terribly bad since it's going on normal DVD anyway for screeners, but eventually will be on Blu-Ray. Problem is, when I change the frame size in sequence settings to 1440x1080 -- most of everything in my 90 minute movie becomes un-rendered and the canvas shrinks my clips (not the window).

The way I export is this way -- export QuickTime movie (current settings), then bring it into Compressor, and then make a high-quality DVD file to burn it on.

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