This reported Flash bug appears to be 4 months old.
Until there is a fix, here is a potential workaround:
Code:
var isPaused = false;
//workaround for destination image not showing when seeking while paused
public function mySeek(timecode:Number):void{
if (isPaused) {
stream.togglePause();
stream.seek(timecode);
stream.togglePause();
}
else stream.seek(timecode);
}
//use this instead of stream.togglePause elsewhere in your player code
public function myTogglePause():void{
stream.togglePause();
isPaused = !isPaused;
}
Disclaimer: not tested