After exporting my project (either as SWF or MOV), when I play the exported file, the flv video I have embedded in the timeline starts over whenever a motion tween begins in a separate layer. Why might this be happening? I'm using CS6.
Is there a key frame in the layer that contains the video at the frame where the motion tween begins?
Nope. Good thinking though.
Ah, figured it out. Totally my fault- in playback within flash, the video freezes on its final frame, which was the effect I intended, but on export embedded flvs apparently repeat, so I just took a screen shot of the final frame and put that in for the duration I wanted the frame to stay frozen. Your suggestion actually led me to this realization, thank you.