Index: trunk/psModules/src/concepts/pmConceptsRead.c
===================================================================
--- trunk/psModules/src/concepts/pmConceptsRead.c	(revision 20215)
+++ trunk/psModules/src/concepts/pmConceptsRead.c	(revision 20231)
@@ -286,4 +286,7 @@
                         headerItem = psMetadataLookup(hduHigh->header, conceptItem->data.V);
                     }
+		    // if (!headerItem) {
+		    // psWarning("Unable to find concept %s claimed to be in header as %s", name, conceptItem->data.str);
+		    // }
                     psMemIncrRefCounter(headerItem);
                 }