Problems User define edit codes

Can anyone assist ?
We have just migrated to a news iSeries machine running V5R4M0. Previous
was running V5R3M0. The DSPF compiled ok on previous version with FT03
marked change to field size included but didn't compile on new box. The
only difference I am aware of is the change to OS. All other aspects are
the same i.e code and edit code definitions. I have changed the edit
code description to see if this makes a difference but no joy.

DSPFFD extract of compiled DSPF on Prev box
CHKAMT ZONED 11 2 11 58 Output 7 67
Field text . . . . . . . . . . . . . . . : Cheque Amount
Keyboard shift . . . . . . . . . . . . . : Y
Editing Information
Edit code . . . . . . . . . . . . . . . : 8
Compile failure on New box
1640 FT03 A*********** CHKAMT 9Y 2O 7 69TEXT('Cheque Amount')
1641 FT03 A CHKAMT 11Y 2O 7 67TEXT('Cheque Amount')
1650 A EDTCDE(8)
* CPD7520-* .
* CPD7528-*
CPD7520 20 1 Message . . . . : Keyword ignored because of error in list
of values.
CPD7528 20 1 Message . . . . : Number of decimal replace positions not
valid.

EDTD Definition
Display Edit Description

Edit description . . . . . . . : 8

Integer mask . . . . . . . . . : 0
Decimal point character . . . : N
Fraction mask . . . . . . . . :
Fill character . . . . . . . . :
Currency symbol . . . . . . . :
Edit zero values . . . . . . . : *YES
Negative status characters . . :
Positive status characters . . :
Left constant characters . . . :
Right constant characters . . :
Text . . . . . . . . . . . . . : Spanish editing w


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