Data not getting written to /tmp

Within an RPG program I am trying to copy a i5 file to the IFS. This same program
writes i5 information to the file. The file gets created in /tmp but the information
doesn't get written. This is my code:
D Path s 11 Inz('/tmp/')
C Eval CMDA = 'CPYTOIMPF ' +
C 'FROMFILE(ENVELOPE) '+
C 'TOSTMF('''+
C %Trim(Path)+
C %TRIM(LastFirst)+
C '.xml'') '+
C 'MBROPT(*REPLACE) '+
C 'TOCCSID(437) '+
C 'RCDDLM(*CRLF) '+
C 'DTAFMT(*FIXED)'

* Copy XML file to /tmp
C MOVEL CmdA Command
C CALLP(e) QCMDEXC(CmdA :
C %Len(%Trim(CmdA)))
* Change Authorty on XML file
C Eval CMDA = 'CHGAUT ' +
C 'OBJ('''+
C %Trim(Path)+
C %TRIM(LastFirst)+
C '.xml'') '+
C 'USER(*PUBLIC) '+
C 'DTAAUT(*RWX)'

This is the authority I have for the /tmp folder

Work with Authority

Object . . . . . . . . . . . . : /tmp
Owner . . . . . . . . . . . . : QSYS
Primary group . . . . . . . . : *NONE
Authorization list . . . . . . : *NONE

Data -------------Data Authorities-------------
Opt User Authority Objopr Read Add Update Delete Execute

*PUBLIC *RWX X X X X X X
QSYS *RWX X X X X X X

This is the authority on the i5 file that is written to and copied from in this program:

Display Object Authority

Object . . . . . . . : ENVELOPE Owner . . . . . . . : QPGMR
Library . . . . . : KDICHANGES Primary group . . . : *NONE
Object type . . . . : *FILE

Object secured by authorization list . . . . . . . . . . . . : *NONE

Object
User Group Authority
QPGMR *ALL
*PUBLIC *ALL

Does anyone have any idea why the data wouldn't be written to the file?

Thanks,

Gary Kuznitz