Synchronize Agile Central Job fails with error: Error validating workspace Id: 123456789098, Error Message:Cannot find object to read 

Document ID : KB000111939
Last Modified Date : 27/08/2018
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Issue:
When I run the Synchronize Agile Central job on a project that has been successfully synced; the job fails with the following error:
ERROR 2018-08-20 13:25:15,687 [Dispatch Synchronize Agile Central (PRJ015418) : bg@sc0app1234.casaasops.com (tenant=clarity)] njs.AbstractClarityJob (clarity:Test.User@test.com:18706768__9B7CFBF2-95EA-4FAF-8848-8F21F3125062:Synchronize Agile Central (PRJ015418)) ---> could not execute AbstractClarityJob (5038138) 
com.niku.nmc.agile.AgileIOException: Error validating workspace Id: 123456789098, Error Message:Cannot find object to read 

STEPS TO REPRODUCE:
1. Input the correct Agile Central Credentials within Administration > Integrations > Click the New button > Input Credentials to complete the Integration
2. Run the Synchronize Agile Central job
3. Synchronize Agile Central job completes successfully and the Integration is made between CA PPM and Agile Central
4. Run the Synchronize Agile Central job again

Expected Result: The Synchronize Agile Central job completes successfully
Actual Result: The Agile Central job fails
Environment:
CA PPM 15.3 and up
Cause:
Defect DE42057.
Resolution:
This is caused by a known defect (DE42057).  To workaround the problem, you can perform a restart on all services and run the Synchronize Agile Central job which should then complete successfully.