Recursive CL - Data decimal error

Is there a known bug with calling a CL recursively passing decimal data as
a parameter to the CL?
I don't seem to have any problems with a character field. But if I pass
numeric and logical, part of the data seems to get truncated when the
second pass is run.
The first pass checks to see if it is an interactive job. If so, it submits
itself passing the two input parameters from an RPGLE program: numeric
(*DEC 9/0) and and indicator (*LGL). The error occurs when I use a CHGVAR
command with the numeric field.
If I remove the SBMJOB code and let the execution drop through to the
CHGVAR, no problem.
Thanks,
Fran Denoncourt