I have done some testing my self. This is what I did: I set the sequence to render in rgb to be sure this wasn`t the problem, then I imported some footage into fcp, the sequence was DV PAL then made a copy of the clip then I sent one to motion, did nothing to it and saved it. When I look at it in fcp in color correction mode the video scopes tell me that it has changed, is it supposed to be like this I can also see a little chage in the color when I look at it. This clip was not broadcast safe before i sent it to motion, but when I got it back it was broadcast safe, I think this weird. I tried to send the same clip to AE, but when I got it back, it looks like a frame are missing or something, so it was difficult to compare, when I didn`t find the same frame.