diff --git a/AIStudio.Wpf.DiagramDesigner/Models/Serializables/ConnectionItem.cs b/AIStudio.Wpf.DiagramDesigner/Models/Serializables/ConnectionItem.cs
index 64318ac..d8f0631 100644
--- a/AIStudio.Wpf.DiagramDesigner/Models/Serializables/ConnectionItem.cs
+++ b/AIStudio.Wpf.DiagramDesigner/Models/Serializables/ConnectionItem.cs
@@ -45,7 +45,7 @@ namespace AIStudio.Wpf.DiagramDesigner
 
             this.RouterMode = viewmodel.RouterMode;
             this.PathMode = viewmodel.PathMode;
-            this.Vertices = viewmodel.Vertices.Select(p => new ConnectorVertexItem(p)).ToList();
+            this.Vertices = viewmodel.Vertices.Where(p => p.ConnectorVertexType == ConnectorVertexType.None).Select(p => new ConnectorVertexItem(p)).ToList();
             this.Labels = viewmodel.Labels.Select(p => new ConnectorLabelItem(p)).ToList();
         }