What are the sequence and export settings?
Did you install the latest update for CS6?
I'm having the same problem.
I have been editing a single interview into four separate videos. Of those videos, only one doesn't have the green line at the bottom of the screen. I'm exporting it as:
Format: H.264, HD 1080i 29.97 preset
Video (changes): 480x270, target bitrate 2, max bitrate 3
Audio (changes): bitrate 160
Sequence was preset for HD 1080i 29.97, but I changed the frame size to 640x360. I've done this all before and never had any problems and I don't know what to do. I've tried re-editing the footage, but it still ends up with the same result. Any ideas?
270 is not evenly divisible by 8. Change that to 272.