using stack (as a watermark) over betterPlayer.

[darter0]

i'm trying to implement a custom watermark over a BetterPlayer widget, However, it works just fine when the video is NOT in full screen i.e THE PHONE IS IN PORTRAIT MODE (IMAGE below):

but the problem is when i enter full-screen mode, flutter widget inspector shows that the watermark is still in place ,but it's not shown on screen (image below):

this is my code:
`@override
Widget build(BuildContext context) {
final width = MediaQuery.of(context).size.width;
final height = MediaQuery.of(context).size.height;

final provider = Provider.of<SeriesVideoProvider>(context);
final seriesVideo = provider.seriesVideo;

return Scaffold(
  backgroundColor: Colors.black,
  body: seriesVideo == null
      ? kProgressIndicator
      : _betterPlayerController != null
          ? Center(
              child: Stack(children: [
                AspectRatio(
                  aspectRatio: 16 / 9,
                  child: BetterPlayer(controller: _betterPlayerController!),
                ),
                Positioned(
                  top: 0,
                  left: 0,
                  child: Container(
                    color: Colors.amber.withOpacity(0.7),
                    padding: const EdgeInsets.all(8),
                    child: Text(
                      'My WaterMark',
                      style: GoogleFonts.cairo(
                        fontSize: MediaQuery.of(context).size.width / 23,
                        color: Colors.white,
                      ),
                    ),
                  ),
                ),
              ]),
            )

     : kProgressIndicator,

);

}
`