Worker process [PID] was terminated, because it didn’t update its status for [NN] minute(s). (4334350)

Overview
An error message implies a timeout where the process did not communicate for an extended period of time. PST file fails mostly due to Filter, Deduplication, or ingestion into Office 365
Details
This message can occur for a number of reasons. The message occurs when there is a period of 10 minutes where a process did not update the service with its status. It is possible that this occurs due to temporary environmental conditions and reprocessing the file may result in a successful second attempt. It is recommended that on an initial occurrence, you attempt to reprocess a file. Common occurrences with many files that reprocess successfully on consecutive attempts may imply a resource constraint on the PST Flight Deck (FD) server.
In some versions of FD, an initial instance of this error will result in locking of system resources, and cause consecutively processed files to fail until the resource lock is cleared.

Error reported via FD Admin Console Event Viewer:

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"Post Processing failed for PST Id -PSTId: Worker process [PID] was
terminated, because it didn't update its status for [NN] minute(s).
QUADROtech.FlightDeck.PostProcess.UnresponsibleProcessTerminatedException
:Worker process [PID] was terminated, because it didn't update its status
for [NN] minute(s).
at QUADROtech.FlightDeck.PostProcess.GenericWorkerTask`3.KillProcessIfNotResponsible(DateTime timeToCheckAgainst, Int32 minutesToWait, Process process, Int32 workerId, Boolean throwException)
at QUADROtech.FlightDeck.PostProcess.GenericWorkerTask`3.Execute(CancellationToken cancellationToken, Int32 workerId)
at QUADROtech.FlightDeck.PostProcess.GenericTaskProcessor`1.ProcessWorkItem(TWorkItem item)"

Where:

• PSTID  is the PSTFileEntryID value for the PST file within FD
• PID is the Process ID within the Windows OS for the worker process
• NN is the time taken. This value is most commonly 10 minutes but could be other values.