Professional :: F4V Not Rendering Video?

I'm trying to create a video background for a game using the FLVPlayback component. I need to smoothly trasisition between multiple videos so I make a FLVPlayer for each one so that I can just tween the alpha when I need to show it. When I start the game I load everything and store the Playback components in a Vector, I think add them to the stage like this
 
for(var i:int = m_Videos.length-1; i > 0; --i)
{
addChildAt(m_Videos[i], 0);
}

Once the game is loaded though the first video dosnt render at all, so I have a see thoough background. But once I transition to a video that is on top of it, the top video renders.