Flutter: video not playing

Question

All video not playing at the same time, only one video is playing.

class VideoCard extends StatefulWidget {
  @override
  _VideoAppState createState() => _VideoAppState();
}

class _VideoAppState extends State<VideoCard> {
  late VideoPlayerController _controller;

  @override
  void initState() {
    super.initState();
    _controller = VideoPlayerController.network('https://flutter.github.io/assets-for-api-docs/assets/videos/bee.mp4');

    _controller.addListener(() {
      setState(() {});
    });
    _controller.setLooping(true);
    _controller.initialize().then((_){
      print("done init");
      setState(() {});
    });
    _controller.play();
  }

  @override
  Widget build(BuildContext context) {
    return AspectRatio(
      aspectRatio: _controller.value.aspectRatio,
      child: VideoPlayer(_controller),
    );
  }

  @override
  void dispose() {
    super.dispose();
    _controller.dispose();
  }
}