Loading multiple videos in FLVPlayback

Question

I am building a video player which should load multiple videos in a FLVPlayback.
When the loading of the first video has finished, the second one should start, using the VideoProgress Event.
My code looks like this, videos is an array with the paths to the videos:
flvPlayback.addEventListener(fl.video.VideoProgressEvent.PROGRESS, progress);
flvPlayback.addEventListener(VideoEvent.COMPLETE, onComplete);
private function progress(e:fl.video.VideoProgressEvent):void
   if (e.bytesLoaded == e.bytesTotal)
     if (videos.length > e.vp + 1)
        flvPlayback.activeVideoPlayerIndex = e.vp + 1;
        var path = videos[e.vp+1];
        if (flvPlayback.source == "")
           flvPlayback.load(path);
        flvPlayback.activeVideoPlayerIndex = flvPlayback.visibleVideoPlayerIndex
private function onComplete(e:fl.video.VideoProgressEvent):void
   if (videos.length > e.vp + 1)
      // set the volume to 0 before switching to next video because of
      // bug in FLVPlayback that prevents to play the sound otherwise.
      var v:Number = flvPlayback.volume;
      flvPlayback.volume = 0;
      flvPlayback.activeVideoPlayerIndex = value;
      flvPlayback.visibleVideoPlayerIndex = player.activeVideoPlayerIndex;
      flvPlayback.volume = v;
      flvPlayback.play();
flvPlayback.load(videos[0]);
flvPlayback.playWhenEnoughDownloaded();
Now I have the problem when I test this locally, the first video is invisible sometimes when starting to play. This is not happening everytime, but sometimes the video is not shown, but I can hear the sound, and I can see the scrubber on the seekbar moving.
I already tried to check in the progress function if the video is already playing, and if not, set a timer that will call the progress function again in 1 second. It seemed to help at first, but then it happened again. Does anyone know a workaround for this?

Answer 1

Out of the AS3 documentation for FLVPlayback:
activeVideoPlayerIndex
A number that specifies which video player instance is affected by other application  programming interfaces (APIs).
           Use this property to manage multiple FLV file streams.
This property does not make the video player visible;
           use the visibleVideoPlayerIndex property to do that.
           A new video player is created the first time activeVideoPlayerIndex
           is set to a number. When the new video player is created,
           its properties are set to the value of the default video player
           (activeVideoPlayerIndex == 0) except for source,
           totalTime, and isLive, which are always set to the
           default values (empty string, NaN, and false, respectively),
           and autoPlay, which is always false (the default is true
           only for the default video player, 0). The cuePoints
           property has no effect, as it would have no effect
           on a subsequent load into the default video player.
setting the activeVideoPlayerIndex property to 1 will create another VideoPlayer instance inside of the FLVPlayback component. I have done it, it does work, but with the mentioned problem in my first post that the first video is not visible.
So either I am doing something wrong, or there is a bug in how it is supposed to work.