NavigationService does not navigate to a different page.

[chocoOnEstrogen]

Describe the bug

When using NavigationService.Navigate(...) it does not Navigate to the proper page, however it throws an error.

"Object reference not set to an instance of an object."

The code is as follows:

private void OnUserCardClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
    UserPage userPage = new UserPage(new UserViewModel());
    NavigationService.Navigate(userPage);
}

I do not know if this is the proper way, the documentation states:

Navigate(string)

Even using this does not work.

// SearchPage.xaml.cs
UserPage userPage = new UserPage(new UserViewModel(), new NavigationView());
NavigationService.Navigate(userPage);

// UserPage.xaml.cs

public UserPage(
    UserViewModel viewModel,
    NavigationView navigationView
)
{
    ViewModel = viewModel;
}

EDIT:

The error comes from a global error handler

 App.Current.DispatcherUnhandledException += OnDispatcherUnhandledException;
 AppDomain.CurrentDomain.UnhandledException += OnAppDomainUnhandledException;

private void OnDispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
        {
            // Handle the exception and show an error message
            ShowErrorMessage("An unexpected error occurred: " + e.Exception.Message);
            e.Handled = true; // Mark the exception as handled
        }

        private void OnAppDomainUnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            // Handle the exception and show an error message
            if (e.ExceptionObject is Exception ex)
            {
                ShowErrorMessage("An unexpected error occurred: " + ex.Message);
            }
        }

        private void ShowErrorMessage(string message)
        {
            // You can customize this to show a dialog or error window
            System.Windows.MessageBox.Show(message, "Error", System.Windows.MessageBoxButton.OK, MessageBoxImage.Error);
        }

To Reproduce

UserPage userPage = new UserPage(new UserViewModel());
NavigationService.Navigate(userPage);

Expected behavior

The page should navigate the the proper page.

Screenshots

Main Issue Video

devenv_J9JXoCoXje.mp4

UserViewModel.cs

OS version

Windows 11

.NET version

8.0.400

WPF-UI NuGet version

3.0.4

Additional context

No response