Language changes, then falls back to default language

[Amir Said]

main.dart

void main() async {
  var localizationsDelegate = await LocalizationDelegate.create(
    fallbackLocale: 'en_US',
    supportedLocales: [
      'en_US',
      'ar',
      'ku',
    ],
  );
  runApp(
    LocalizedApp(
      localizationsDelegate,
      MainApp(),
    ),
  );
}

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

  @override
  Widget build(BuildContext context) {
    var localizationDelegate = LocalizedApp.of(context).delegate;
    return LocalizationProvider(
      state: LocalizationProvider.of(context).state,
      child: ScreenUtilInit(
        designSize: const Size(990, 769),
        minTextAdapt: true,
        splitScreenMode: false,
        builder: (context, child) => MaterialApp(
          debugShowCheckedModeBanner: false,
          navigatorKey: NavigationService.navigatorKey,
          routes: Routes.routes,
          initialRoute: '/',
          theme: theme,
          localizationsDelegates: [
            GlobalMaterialLocalizations.delegate,
            GlobalWidgetsLocalizations.delegate,
            localizationDelegate,
          ],
          supportedLocales: localizationDelegate.supportedLocales,
        ),
      ),
    );
  }
}

routes.dart

class Routes {
  static const String HOMESCREEN = '/';

  static Map<String, Widget Function(BuildContext)> routes = {
    HOMESCREEN: (context) {
      return const HomeScreen();
    },
  };

I am performing the locale change in a dialog. When the locale change occurs, the locale changes to the selected language but then reverts back to the original locale.