2490699 - Analysis office schedule jobs fail after update or repair AO BIP Add-on

• After Installing or running repair of Analysis Office (AO) ADD ON for BIP, all AO schedules are faililng in BI Launchpad.
• Issue occurs on all AO Schedules
• This is even after going through following checklist - SAP Note 2134836 - Checklist for Scheduling of Analysis for Office Workbooks.
• The AO worksheet schedule only says failed without much detail
• High level trace log for AOSchedulingService_Child procdess [enabled on AJS running the AO Scheduling service ] shows following errors.
  
  

pssFactoryClassName is null or blank: cannot proceed with initialization.

Caught unexpected exception:
java.lang.IllegalArgumentException: pssFactoryClassName is null or blank.
at com.businessobjects.js.child.ProcessingSubsystemHost.throwIllegalArgumentException(ProcessingSubsystemHost.java:2040)
at com.businessobjects.js.child.ProcessingSubsystemHost.<init>(ProcessingSubsystemHost.java:193)
at com.businessobjects.js.child.IJobImpl.run(IJobImpl.java:98)
at com.crystaldecisions.enterprise.ocaframework.idl.OSCA.OSCAip.IJobPOA._OB_op_run(IJobPOA.java:130)

Failed to create ProcessingSubsystemHost due to an unexpected exception.

• SAP Business Objects BI Platform 4.2 (eg: 4.2 SP2 Patch 7)
• SAP Analysis Office Add on for BIP 2.3.3
• Windows Server Operating System

Analysis, office, AO, schedule, fail, service, object, pssFactoryClassName , KBA , BI-BIP-INS , Installation, Updates, Upgrade, Patching , BI-RA-AO-BIP , AO Precalculation, Scheduling and AO InfoOb... , Problem