2763620 - UME high availability LDAP configuration - Validation failed. Configuration not saved

In NetWeaver AS Java the LDAP server list cannot be saved, due to a validation error:

Validation failed. Configuration not saved. Technical details

The defaulTtrace files logged this entry with Error severity level:

DataSource CORP_LDAP:Initialization of connection manager failed because: Amount of servers differ from amount of ports in the configuration

[EXCEPTION]
com.sap.security.core.persistence.datasource.PersistenceException: Amount of servers differ from amount of ports in the configuration
at com.sap.security.core.persistence.datasource.imp.LDAPConnectionManager.initConnectionPools(LDAPConnectionManager.java:454)
at com.sap.security.core.persistence.datasource.imp.LDAPConnectionManager.initialize(LDAPConnectionManager.java:95)
at com.sap.security.core.persistence.datasource.imp.LDAPPersistence.init(LDAPPersistence.java:519)
at com.sap.security.core.persistence.imp.PrincipalDatabagFactoryInstance.<init>(PrincipalDatabagFactoryInstance.java:550)
at com.sap.security.core.persistence.imp.PrincipalDatabagFactory.getNewInstance(PrincipalDatabagFactory.java:203)
at com.sap.security.core.persistence.imp.PrincipalDatabagFactory.newInstance(PrincipalDatabagFactory.java:148)
at com.sap.security.core.jmx.impl.JmxServer.getPrincipalDatabagFactory(JmxServer.java:1936)
at com.sap.security.core.jmx.impl.JmxServer.validateCurrentConfiguration

• SAP NetWeaver AS Java
• LDAP UME datasource

LDAP configuration, UME, high availability , KBA , BC-JAS-SEC-UME , User Management Engine , Problem