Index: src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs
===================================================================
diff -u -r642 -r669
--- src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 642)
+++ src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 669)
@@ -542,15 +542,15 @@
                     spatialEditor.AddShape(shape);
                 }
             }
-            else if (project != null && sender == project.SoilProfiles2D)
+            else if (project != null && (sender == project.SoilProfiles2D || sender == project.SoilProfiles1D))
             {
                 if (spatialEditor.EmptySelection != null)
                 {
-                    var currentSoilProfile = spatialEditor.EmptySelection.DataObject as SoilProfile2D;
+                    var currentSoilProfile = spatialEditor.EmptySelection.DataObject as SoilProfile;
                     if (currentSoilProfile != null)
                     {
                         // check whether the current displayed object has been removed
-                        bool removed = !project.SoilProfiles2D.Contains(currentSoilProfile);
+                        bool removed = !project.SoilProfiles2D.Contains(currentSoilProfile) && !project.SoilProfiles1D.Contains(currentSoilProfile);
 
                         if (removed)
                         {