.NET 8 MAUI Windows打包后崩溃：跨线程调用接口异常

我们正在将Xamarin.Forms应用迁移为.NET 8 MAUI Windows应用，本地运行无构建错误，可正常启动至登录页面（暂未深入开发API相关功能）；但打包后启动即崩溃，抛出异常The application called an interface that was marshalled for a different thread。

以下是我的App.cs代码：

public partial class App : Application
{
    DataRepository _dataRepository;

    public App()
    {
        _dataRepository = new DataRepository(UIConstants.DatabasePath);

        try
        {
            MainPage = new LoadingPage();
        }
        catch (WebException ex)
        {
            Task.Run(() => _dataRepository.SaveErrorLog(ex));
        }
        catch (Exception ex)
        {
            Task.Run(() => _dataRepository.SaveErrorLog(ex));
            MainPage = new NavigationPage(new ErrorPage(ex));
        }
    }

    protected async override void OnStart()
    {
        // Handle when your app starts
        ValidateLogin();

        //Clear PSOs left over in SQLLite when application starts
        var psos = _dataRepository.GetPSOs();
        foreach (var pso in psos)
        {
            await _dataRepository.DeletePSO(pso);
        }
        // Debug.WriteLine("ONSTART");
    }

    protected override void OnSleep()
    {
        // Handle when your app sleeps
        MainViewPage mainpage = Application.Current.MainPage as MainViewPage;
        if (mainpage != null)
        {
            Task.Run(() => mainpage.SaveBeforeExit()).Wait();
            //Must dispose of dailylogpage. New one will be created on Resume
            mainpage.DisposeDailylogPage();
        }
        //Debug.WriteLine("ONSLEEP");
    }

    protected override void OnResume()
    {
        // Debug.WriteLine("ONRESUME");
        ValidateLogin();
    }

    private void UpdateLookups()
    {
        try
        {
            if (LookupViewModel.IssuedTos == null || LookupViewModel.IssuedTos.Count <= 0)
            {
                Task.Run(async () =>
                {
                    await SynchHelper.UpdateLookupsFromServer();
                });
            }
        }
        catch (Exception)
        { // fail will happen on expired tokens
        }
    }

    private void ValidateLogin()
    {
        //don't validate login if no network
        //TODO After update, add permission in droid project to access network state
        if (Connectivity.Current.NetworkAccess != NetworkAccess.Internet)
        {
            if (!_dataRepository.CheckIfFirstTimeLogin())
            {
                this.Dispatcher.Dispatch(() =>
                {
                    MainPage = new MainViewPage();
                });

            }
            else
            {
                //TODO Add a message to let user know no connection and no user in db to load offline. Need to login when connection is established
                return;
            }
        }
        Task.Factory.StartNew(async () =>
        {
            try
            {
                if (!_dataRepository.CheckIfFirstTimeLogin())
                {
                    UserSecurityDA userSecurityDA = new UserSecurityDA();
                    SouthernUserInfo southernUser = await userSecurityDA.GetSouthernUserInfo(ISwitchSecurity.AuthBearerToken);
                    this.Dispatcher.Dispatch(() =>
                    {
                        MainPage = new MainViewPage();
                    });
                }
                else
                {
                    this.Dispatcher.Dispatch(() =>
                    {
                        MainPage.Navigation.PushModalAsync(new LoginPage());
                    });
                }
            }
            catch
            {
                this.Dispatcher.Dispatch(() =>
                {
                    MainPage.Navigation.PushModalAsync(new LoginPage(false, true));
                });
            }
        });
    }
}

已尝试将BeginInvokeOnMainThread替换为Dispatcher.Dispatch()，但问题仍未解决，恳请协助排查。

内容的提问来源于stack exchange，提问作者Zack Watson