V5R4 CALLPRC issues

We converted our system to V5R4 last night. Today, I am seeing problems
where the CALLPRC is used in CLLE programs. I am passing a character
string into an SQLRPGLE module. Using debug, the character string is
intact until it gets passed into the module. Here is the code.

             PGM        PARM(&PARM)

             DCL        VAR(&PARM) TYPE(*CHAR) LEN(22)

             CALLPRC    PRC(AA0130) PARM(&PARM)

             ENDPGM

Here is the debug eval results for the field when the program gets to the
CALLPRC statement.

&PARM = '01V000000100AA0125    '

The data gets corruptted when passed into the SQLRPGLE module.

This situation only applies to CLLE program compiled since installing
V5R4. We also compile to previous release of V5R2.

Thanks in advance for assistance.

Nick W. Mart