diff --git a/com.connor.jd.plm/src/com/connor/jd/plm/dialogs/TransformDesignToPartDialog.java b/com.connor.jd.plm/src/com/connor/jd/plm/dialogs/TransformDesignToPartDialog.java
index 8b1de4a..f56c7e0 100644
--- a/com.connor.jd.plm/src/com/connor/jd/plm/dialogs/TransformDesignToPartDialog.java
+++ b/com.connor.jd.plm/src/com/connor/jd/plm/dialogs/TransformDesignToPartDialog.java
@@ -748,8 +748,23 @@ public class TransformDesignToPartDialog extends AbstractAIFDialog implements Ac
 			
 
 		}
-		win.save();
-		win.unlock();
+		try {
+			win.save();
+		}catch(Exception e) {
+			TCComponent[] comps=parentRev.getTCProperty("structure_revisions").getReferenceValueArray();
+			if(comps.length>0) {
+				parentRev.remove("structure_revisions", comps[0]);
+				comps[0].lock();
+				comps[0].delete();;
+			}
+			
+			e.printStackTrace();
+			throw e;
+		}finally {
+			win.unlock();
+		}
+		
+		
 
 	}