COLOR attribute not works when subfile page up/down

Hi, All

I found that showing two formats(one is subfile) at the same time is not as
expect result. The case is the COLOR attribute not works on FIELD2 after
EXFMT CTL2 and page up/down will cause FIELD1 still in blue color but
FIELD2 back to its default color(like my front color is green then FIELD2
is green now). I'm considering combine the fields from FMT01 into CTL2 as
output usage to solve it, any suggestions? Thanks in advance.

1)display file codes:
A**------------------------------------------------------------------------
A*
A R FMT01 OVERLAY
A CF03
A CF12
A*
A 4 2' FIELD1 :'
A COLOR(BLU)
A D1TRCD 3A B +1TEXT(' FIELD1 ')
A 30 DSPATR(RI PC)
A 34 DSPATR(HI PR)
A*
A +1' FIELD2 :'
A COLOR(BLU)
A D1PORT 3A B +1TEXT(' FIELD2 ')
A 31 DSPATR(RI PC)
A 34 DSPATR(HI PR)
A*
A**------------------------------------------------------------------------
A*
A R SFL2 SFL
A S2OPTN 1A B 7 3
A 35 DSPATR(RI PC)
A S2RFLG 1A O 7 8DSPATR(HI)
A*
A**------------------------------------------------------------------------
A*
A R CTL2 OVERLAY
A CF03
A CF12
A SFLCTL(SFL2)
A SFLSIZ(9999)
A SFLPAG(15)
A 25 SFLCLR
A 26 SFLDSPCTL
A 27 SFLDSP
A 28 SFLEND
A D2RNBR 4S 0H SFLRCDNBR
A*
A 6 2'SEL'
A COLOR(BLU)
A DSPATR(UL)
A*
A 6 6' REVISED'
A COLOR(BLU)
A DSPATR(UL)

program codes:
C @DSP01 BEGSR
C*
C ......
C EXFMT FMT01
C ......
C @DSP01E ENDSR
C*
C @DSP02 BEGSR
C*
C ........
C WRITE FMT01
C EXFMT CTL2
C ..........
C @DSP02E ENDSR
C*

2)first display, they both in blue:
FIELD1 : ____ FIELD2 : ____

3)after input, write the subfile(records more then 15), they still in blue
if you don't page up/down,
FIELD1 : ____ FIELD2 : ____

SEL REVISE
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R
_ R +

4)page down, color changes, but press ENTER they both back to blue
color(because FMT01 has been written again).
FIELD1 (still in blue) : ____ FIELD2 (now is green, COLOR not works) : ____

SEL REVISE
_ R
_ R
_ R
_ R