flutter background service doesn't work in release mode

As I wrote in title, my background service doesn’t work in release mode, still it works in debug mode.

this is my code. this is very simple foreground task code, added in flutter counter example code.

import 'dart:async';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:flutter_background_service/flutter_background_service.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:flutter_background_service_android/flutter_background_service_android.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await initializeService();

  runApp(const MyApp());
}

const notificationChannelId = 'background_test';
const notificationId = 424;

Future<void> initializeService() async {
  final service = FlutterBackgroundService();

  const AndroidNotificationChannel channel = AndroidNotificationChannel(
      notificationChannelId, 'MY FOREGROUND SERVICE',
    description:
      'hello world',
    importance: Importance.high,
  );

  final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();

  await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()?.createNotificationChannel(channel);

  await service.configure(
    androidConfiguration: AndroidConfiguration(
      onStart: onStart,
      autoStart: true,
      isForegroundMode: true,
    ),
    iosConfiguration: IosConfiguration(
    ),
  );
  service.startService();
}

onStart(ServiceInstance service) async {
  DartPluginRegistrant.ensureInitialized();
  if (service is AndroidServiceInstance) {
    service.on('setAsForeground').listen((event) {
      service.setAsForegroundService();
    });
    service.on('setAsBackground').listen((event) {
      service.setAsBackgroundService();
    });
  }
  service.on('stopService').listen((event) {
    service.stopSelf();
  });

  Timer.periodic(const Duration(seconds: 10), (timer) async {
    if (service is AndroidServiceInstance) {
      service.setForegroundNotificationInfo(
        title: "App in background...",
        content: "Update ${DateTime.now()}",
      );
    }
    service.invoke(
      'update',
      {
        "current_date": DateTime.now().toIso8601String(),
      },
    );
  });
}
//Some code for background task

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const 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> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.headlineMedium,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

when I execute this code in debug mode, foreground task runs well like this.

enter image description here

but when i run this with release mode, this doesn’t work well like this.

enter image description here

what’s wrong with this?

I’ve added permission in AndroidManifest.xml

<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>

but it didn’t help with this problem.