ICompositorDesktopInterop throws exception in TFM .NET 5

I was trying to port a C# code from .NET 4.8 to .NET 5, older version of .NET was using Microsoft.Windows.SDK.Contracts, In .NET 5 Microsoft.Windows.SDK.Contracts is replaced by Target Framework Monikers (TFMs) I used the same code an tried to cast the compositor to ICompositorDesktopInterop but it throws exception :

System.InvalidCastException: 'Invalid cast from ‘Windows.UI.Composition.Compositor’ to ‘ICompositorDesktopInterop’

Here is the code:

private void InitComposition(IntPtr hwnd)
{
    ICompositorDesktopInterop interop;
    object iunknown = Compositor as object;
    interop = (ICompositorDesktopInterop)iunknown;
    IntPtr raw;
    interop.CreateDesktopWindowTarget(hwnd, true, out raw);

    object rawObject = Marshal.GetObjectForIUnknown(raw);
    var compositionTarget = (ICompositionTarget)rawObject;

    f (raw == null) { throw new Exception("QI Failed"); }
}

Since this method throws exception I tried a different method:

ICompositorDesktopInterop interop;
object iunknown = Compositor as object;
interop = iunknown.As<ICompositorDesktopInterop>();
interop.CreateDesktopWindowTarget(hwnd, true, out ICompositionTarget target);

For this there was no exception but whenever I use ICompositionTarget the Application closes without any messages.

Why is it not working with TFM ? Is there something I missed ?

I have the same issue in Cs/WinRT package also.

[lindexi]

@Extrimis Thank you.

[Extrimis]

I just find a fix now, and it is working for me, I will post the code on GitHub once I clean it up