diff --git a/PROMS/Volian.Controls.Library/vlnTreeView.cs b/PROMS/Volian.Controls.Library/vlnTreeView.cs
index e02c629f..9cbefa79 100644
--- a/PROMS/Volian.Controls.Library/vlnTreeView.cs
+++ b/PROMS/Volian.Controls.Library/vlnTreeView.cs
@@ -580,7 +580,15 @@ namespace Volian.Controls.Library
 
 		private void AddApprovedRevisions(Menu.MenuItemCollection menuItemCollection, ProcedureInfo pri)
 		{
-			RevisionInfoList ril = RevisionInfoList.GetByItemID(pri.ItemID);
+			RevisionInfoList ril = null;
+			try
+			{
+				ril = RevisionInfoList.GetByItemID(pri.ItemID);
+			}
+			catch
+			{
+				return;
+			}
 			if (ril.Count == 0) return;
 			MenuItem mi = menuItemCollection.Add("Versions");
 			int lastApprovedRevisionID = 0;