Dynamically loading Shell TabBar Tabs

Hi,

Attached VS2019 (Windows) Shell solution is loading TabBar Tabs dynamically. The issue is TabBar.Tab.Items.Clear() results in page not loading in iOS, and in Android only one of the 2 tabs has data.

What am I doing wrong?

See AppShellViewModel.cs

Thank you.

` class AppShellViewModel: BaseViewModel
{
private ObservableCollection accounts = new ObservableCollection();

    public AppShellViewModel()
    {
        Task.Factory.StartNew(RefreshAccountListAsync);
    }

    public ObservableCollection<string> Accounts
    {
        get => accounts;
        set => SetProperty(ref accounts, value);
    }

    private void RefreshAccountListAsync()
    {
        IsBusy = true;
        Accounts = new ObservableCollection<string>(new List<string>() { "Account1", "Account2" });

        Tab resultsTab = PickerTestApp.AppShell.Current.FindByName<Tab>("resultsTab");
        Xamarin.Essentials.MainThread.BeginInvokeOnMainThread(() =>
        {
            //On Android, clearing Items works.
            //On iOS, app does not load at all
            resultsTab.Items.Clear();

            //On Andoid: Account2 never loads ItemsPage
            //On iOS, app does not load at all
            foreach (var account in Accounts)
            {
                ShellContent resultsSC = new ShellContent();
                resultsSC.Title = account.ToUpperInvariant();
                resultsSC.Route = account;
                resultsSC.ContentTemplate = new DataTemplate(() => { return new PickerTestApp.Views.ItemsPage(); });
                resultsTab.Items.Add(resultsSC);
            }
        });

        IsBusy = false;
    }

}`