3209562 - The result is truncated because the conversion/operation resulted in overflow - DirectConnect MFC

RPCs are getting a failure when the client enters this transaction.  

Always there is a message about  the conversion/operation resulting in an overflow.  This error is always followed by Error #34208 (Client disconnected while receiving results).

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LogClientLogin 05/16/2022 17:18:01.430158 DSRVx 15 XXXXXXX ...Connection successful.  TDS Level [5.0], enum=[9]
LogOCOSMessages 05/16/2022 17:18:01.772010 dcssrvy NULL NULL NULL Error: 33816868 Severity: 1 State:  SQLState: 22001 Status: -139154396 OS Number: 0 OS String:  : cs_convert: cslib user api layer: common library error: The result is truncated because the conversion/operation resulted in overflow.<CS-Lib>
LogTRS 05/16/2022 17:18:01.772492 DSRVx 15 XXXXX #34208 Client disconnected while receiving results.

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The RPC's are started by a Windows client to run in CICS on a z/os mainframe.  No ASE involved.

DirectConnect 15.0.1  (MFC) 

Error: 33816868 SQLState: 22001 Status: -139154396 cs_convert: cslib user api layer: common library error: The result is truncated because the conversion/operation resulted in overflow #34208 Client disconnected while receiving results , KBA , BC-SYB-MFC , Mainframe Connect (MFC) , Problem