Flutter DropZone always showing Circular Progress Indicator - flutter

Question

I'm trying to implement the flutter_dropzone 3.0.5 plugin in my app but can't figure out why it seems to be always loading, making it impossible to drop a file in the dropzone area...
Here is my code so far:
class UploadDocument extends StatefulWidget {
final logger = getLogger("UploadDocument view");
UploadDocument({Key? key}) : super(key: key);
#override
State<UploadDocument> createState() => _UploadDocumentState();
}
class _UploadDocumentState extends State<UploadDocument> {
late DropzoneViewController controller;
#override
Widget build(BuildContext context) {
return Card(
elevation: 8,
child: Padding(
padding: const EdgeInsets.all(50),
child: Container(
color: ProjectColors.lighterAccentColor,
child: Stack(
children: [
DropzoneView(
onCreated: (controller) => this.controller = controller,
onDrop: acceptFile,
),
Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: const <Widget>[
Icon(
Icons.cloud_upload,
color: ProjectColors.blackBgExtraLighter,
size: 50,
),
Text("Drop Files Here",
style: TextStyle(
color: ProjectColors.blackBgExtraLighter,
fontSize: 20))
],
),
),
],
)),
),
);
}
Future acceptFile(dynamic event) async {
final name = event.name;
final mime = await controller.getFileMIME(event);
final bytes = await controller.getFileSize(event);
final url = await controller.createFileUrl(event);
widget.logger.i('name: $name');
widget.logger.i('mime: $mime');
widget.logger.i('bytes: $bytes');
widget.logger.i('url: $url');
}
}
and the result :
Thanks in advance for any advice!!!