Exporting mov or image seq at 60fps

Hi folks

I’m trying to export a mov at 60 fps. The trouble is I’m getting weird stuff happening in my exported movies, when I bring one into After Effects it thinks it is 62.5 fps. And the first 10 or so frames of the mov will be of the same image as if frozen.

I’m bringing the mov into After Effects because ultimately I’d like to have an image sequence, but I can’t export an image sequence from Flash because it won’t recognise the animations inside of my movieclips, so each frame renders out the same.

Is there a way to export an image sequence from Flash and have it include the multiple timeline animations inside Movieclips?

Do I have any other options?