2667288 - Cannot log on to the UME because it is the UME communication user: AS JAVA startup issue

The SAP NetWeaver Application Server for JAVA startup fails due to the UME (User Management Engine) service (com.sap.security.core.ume.service) not being initialized and the below error is logged in the trace files (default trace file, std_server<x> and dev_server<x>):

**************************************************************************************************************************************
Core service [com.sap.security.core.ume.service] failed to start]
CSN Component [BC-JAS-SEC-UME], DC Name [sap.com/com.sap.security.core.ume.service]
[EXCEPTION]
com.sap.security.core.persistence.datasource.imp.r3persistence.MessageException:
User <<User name>> cannot log on to the UME because it is the UME communication user <<User name>> backend system <SID>CLNT<Client number>
**************************************************************************************************************************************

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• SAP Release Independent
• SAP NetWeaver

SAP Composition Environment all versions ; SAP NetWeaver Application Server for Java all versions ; SAP NetWeaver all versions ; SAP Process Integration all versions ; SAP Solution Manager all versions

jcmon, instance startup, SAP MMC, SMICM ,SAP Production ERP SRM CRM ERP PPM SEM APO XI PI PORTAL issue ume.r3.connection.master.sysnr ume.r3.connection.master.ashost RFC_SYS_EXCEPTION RFC_ERROR_LOGON_FAILURE 718383 1512766 dialog logon  SAP GUI cluster restart , KBA , BC-JAS-SEC-UME , User Management Engine , BC-JAS-SF , Startup Framework , Problem