carousel bug

import 'package:flutter/material.dart';
import 'package:flutter_carousel_widget/flutter_carousel_widget.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Demo',
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  CarouselController? controller = CarouselController();
  bool autoplay = false;
  CarouselPageChangedReason? lastReason;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        elevation: 10,
        title: Text(widget.title),
        actions: [
          IconButton(
            onPressed: () => setState(() {
              autoplay = !autoplay;
              print('autoplay toggled');
            }),
            icon: Icon(autoplay ? Icons.pause : Icons.play_arrow),
          ),
          IconButton(
            onPressed: () => setState(() {
              controller = controller == null ? CarouselController() : null;
              print('controller toggled');
            }),
            icon: Icon(
              controller == null ? Icons.gamepad_outlined : Icons.gamepad,
            ),
          )
        ],
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
                'Last changed reason:\n${lastReason != null ? lastReason!.toString() : 'None'}'),
            FlutterCarousel(
              items: const [
                Padding(
                  padding: EdgeInsets.all(8.0),
                  child: Placeholder(),
                )
              ],
              options: CarouselOptions(
                onPageChanged: (_, reason) => setState(
                  () {
                    lastReason = reason;
                    print(reason);
                  },
                ),
                controller: controller,
                enableInfiniteScroll: true,
                autoPlay: autoplay,
              ),
            ),
          ],
        ),
      ),
    );
  }
}