Shortdump during Upload FI Open Item data using LSMW "RFBIBL00"

dear All,

Right now I`ve encounter shortdump when I wanna upload Open Item AP using LSMW direct input Object 0100, Method 0000 in ECC6.

I notice this problem only happen in this time, last time I`ve also uploaded open item AP using same method in ECC6 but it was fine (no prob at all). I found out that in structure BBSEG have field PRODPER, and in include RFBIBL02 got statement.

IF BBSEG-PRODPER(1) NE NODATA.

CLEAR: FTPOST-FNAM, FTPOST-FVAL.

IF XTBSL-KOART = 'S' OR XTBSL-KOART = 'A'.

FTPOST-FNAM = 'COBL-PRODPER '.

ELSE.

FTPOST-FNAM = 'BSEG-PRODPER '.

ENDIF.

FTPOST-FVAL = BBSEG-PRODPER .

APPEND FTPOST.

ENDIF.

Is this bug in SAP ECC6 last release? or any other solution to fix this.

Please kindly help me .

Thks,