SP 2013 Workflow Instance Suspended : There has been an error authenticating the request

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One of my customer are still on Old 2013 on-prem Provided App hosting model and every now and then, the workflow instance chokes and gets suspended with an error message 'There has been an error authenticating the request'. This is very annoying and there is nothing you could other than recycle the SecurityTokenServiceApplicationPool  application pool in IIS, And then you have to go to individual failed instance and Terminate and resubmit all suspended workflows.

RequestorId: 847a8tdb-8a23-bc5a-0000-000000000000. Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 401
{"error_description":"The server was unable to process the request due to an internal error. For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework SDK documentation and inspect the server trace logs."}
{"x-ms-diagnostics":["3001000;reason=\"There has been an error authenticating the request.\";category=\"invalid_client\""],

Funny thing is, the same thing happened when this was deployed in the SPOL. Noting you could do other than resubmitting the workflow and it works :( Strange

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