Odd failure when running a RPG program -- RNX9998 "Internal failurein compiler or subroutine."

[David Gibbs <david@xxxxxxxxxxxx>]

Folks:

I'm getting a very odd failure when running a ILE RPG program.

I'm getting a MCH3601 error, which normally indicates to me that there 
is a parameter mismatch ... but immediately after I am getting a RNX9998 
"Internal failure in compiler or subroutine.", which I have never gotten 
before.

The joblog shows the following ...

MCH3601    Escape                  40    03/07/30   15:54:34   QRNXIO 
      QSYS        *STMT    QRNXIO       QSYS         *STMT
From module . . . . . . . . :   QRNXOCIO
From procedure  . . . . . . :   _QRNX_OPEN
Statement . . . . . . . . . :   9
To module . . . . . . . . . :   QRNXOCIO
To procedure  . . . . . . . :   _QRNX_OPEN
Statement . . . . . . . . . :   9
Message . . . . :   Pointer not set for location referenced.

RNX9998    Escape                  50    03/07/30   15:54:34   QRNXIE 
      QSYS        *STMT    IMCOMO2      SDMIM        *STMT
From module . . . . . . . . :   QRNXMSG
From procedure  . . . . . . :   SignalException
Statement . . . . . . . . . :   20
To module . . . . . . . . . :   IMCOMO2
To procedure  . . . . . . . :   _QRNP_PEP_IMCOMO2
Statement . . . . . . . . . :   *N
Message . . . . :   Internal failure in compiler or subroutine.

CEE9901    Escape                  30    03/07/30   15:54:34   QLEAWI 
      QSYS        *STMT    IMPRIN6      SDMIM        *STMT
From module . . . . . . . . :   QLEDEH
From procedure  . . . . . . :   Q LE leDefaultEh
Statement . . . . . . . . . :   235
To module . . . . . . . . . :   IMPRIN6
To procedure  . . . . . . . :   IMPRIN6
Statement . . . . . . . . . :   1334
Message . . . . :   Application error.  RNX9998 unmonitored by IMCOMO2 
at statement *N, instruction X'0000'.

The thing that has me most concerned is the RNX9998 ... I've never seen 
one of those before.

Any suggestions?

david