FLVPlayback component stop playing

I have a Fla file with 2600 frames and 25 images. They simply alpha tween from one to the other. Additionally I have some Cuepoints to display accompanied text. I publish the Fla as a .mov. Then in another Fla I import video (.mov)

This structure worked fine when I use less images and just make use of aprox 190 frames. When I use the full version of 2600 frames the player head just stop soon after the movie started.

Is there a way around this? Does the Flvplayer have a limit to the file size, number of frames allowed?

Please help as I am at a total loss.