Navigation.PushAsync not working as intended in a ToolbarItem Clicked event

[wallym]

I've got an app that I am porting over to Maui from XF. I have a toolbaritem in my navigationbar. Here is the basic definition:

    <ContentPage.ToolbarItems>
        <ToolbarItem Text="New Game" Clicked="NewGame_Clicked" x:Name="NewGame" />
    </ContentPage.ToolbarItems>
    <VerticalStackLayout><ListView........./></VerticalStackLayout>

Here is my NewGame_Clicked Event:

    private void NewGame_Clicked(object sender, EventArgs e)
    {
        Navigation.PushAsync(new EventSetupPage());
    }

Here is the content of the EventSetupPage() overly simplified:

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="ScanAndScoringMauiApp.Pages.EventSetupPage"
             Title="EventSetupPage">
    <VerticalStackLayout>
        <Label 
            Text="Welcome to .NET MAUI!"
            VerticalOptions="Center" 
            HorizontalOptions="Center" />
    </VerticalStackLayout>
</ContentPage>

When the EventSetupPage() comes up, it is blank in an android 12 emulator. The constructor is called, so I know that something is happening. It's like the page is being loaded in the wrong thread. I'm doing something wrong. Any thoughts on what I should do to get my page to load? TIA