2056803 - SMP 2.3.4 shows this error message in the log: Inconsistent MBO instance detected. Composite parent could not be found for MBO Name instance

• In this case a DCN fails with a com.sybase.sup.server.dcn.DCNException

• The SMP Server log shows this  error: 
  2014-08-20 08:27:56.522 ERROR   MMS          pool-5-thread-65 [com.sybase.djc.log.SystemExceptionLog] [] [] com.sybase.sup.server.dcn.DCNException was thrown by transaction com.sybase.djc.transaction.TransactionContext.*AnonymousTransaction*\ncom.sybase.sup.server.dcn.DCNException: Inconsistent MBO instance detected.  Composite parent could not be found for xxxxxxxxxMBO instance. Instance attributes: {yyyyyyyyyyyyy=xxxxxxxxxxxxxxxxxxx, yyyyyyyyy=xxxxxxxxx, yyyyyyyyyyyy=xxxxxxxxxxxxx, yyyyyyyy=, yyyyyyyy=}
        at com.sybase.sup.server.dcn.DCNHandler.dcnGraphMergeRequest(DCNHandler.java:891)
        at com.sybase.sup.server.dcn.DCNHandler.processDCNMessage(DCNHandler.java:1404)
        at com.sybase.sup.server.dcn.DCNHandler.access$200(DCNHandler.java:90)
        at com.sybase.sup.server.dcn.DCNHandler$1.invokeInternal(DCNHandler.java:549)
        at com.sybase.sup.server.dcn.DCNHandler$1.invoke(DCNHandler.java:506)

SAP Mobile Platform (SMP) 2.3.4
REX 3.2

KBA , MOB-SUP-DCN , Sybase Data Change Notification , Problem