diff --git a/Fluent.Ribbon/Controls/Backstage.cs b/Fluent.Ribbon/Controls/Backstage.cs
index d2fcb6a5a..3330b80c9 100644
--- a/Fluent.Ribbon/Controls/Backstage.cs
+++ b/Fluent.Ribbon/Controls/Backstage.cs
@@ -514,6 +514,13 @@ private void OnDelayedShow(object sender, EventArgs args)
         /// </summary>
         protected virtual void Hide()
         {
+            // potentially fixes https://github.com/fluentribbon/Fluent.Ribbon/issues/489
+            if (this.Dispatcher.HasShutdownStarted
+                || this.Dispatcher.HasShutdownFinished)
+            {
+                return;
+            }
+
             this.Loaded -= this.OnDelayedShow;
 
             if (this.Content == null)