To Avalonia.Controls.TopLevel.HandleClosed method body was added Avalonia.Controls.TopLevel.StopRendering method call

src/Avalonia.Controls/TopLevel.cs

@@ -591,6 +591,7 @@ namespace Avalonia.Controls
             Renderer.SceneInvalidated -= SceneInvalidated;
             // We need to wait for the renderer to complete any in-flight operations
             Renderer.Dispose();
+            StopRendering();
             
             Debug.Assert(PlatformImpl != null);
             // The PlatformImpl is completely invalid at this point