Dispose child VS2022

Question

This code works when it's done with VS2019 but not for VS2022. MyControl is never disposed, memory leaks...
What could be wrong?
Thx Ant

private void Window_MouseDown(object sender, MouseButtonEventArgs e)
{
    if (main.Children.Count == 0)
    {
        Console.WriteLine("Adding control");
        main.Children.Add(new MyControl() { Background = Brushes.Yellow, Width = 100, Height = 50 });
    }
    else
    {
        Console.WriteLine("Removing control");
        main.Children.RemoveAt(0);
    }

    UpdateLayout();
    Dispatcher.Invoke(new Action(() => { }), System.Windows.Threading.DispatcherPriority.ContextIdle, null);

    GC.Collect(); // This should pick up the control removed at a previous MouseDown
    GC.WaitForPendingFinalizers(); // Doesn't help either
    GC.Collect();
    GC.WaitForFullGCComplete();
}

Answer 1

What version of the .net are you using? Could MyControl have event handlers that are not being removed?

Answer 2

VS2019 .NET Framework 4.5
VS2022 .NET 6.0 ( tried for 4.5 too )
... the same project for VS19 and VS22, in the VS22 leaks and Dispose is never called

Thx Ant

public class MyControl : TextBlock
    {
        public byte[] data;

       public  MyControl()
        {
            data = new byte[10000000];
        }
        ~MyControl()
        {
            int k = 0;
            k++;       // just for brakpoint place
            Debug.WriteLine("disposed");
        }
    }