$A29C LDIRThe following patch fixes the problem in the same number of bytes:
LD (IY+0),8
POP HL
LD E,LX
LD D,HX
LDI
LDI
INC HL
INC DE
INC HL
INC DE
LD C,6
LDIR
$A29C LDIR
LD (IY+0),8
POP HL
LD E,LX
LD D,HX
LD C,2 ; Fixed using POKE 41639,14: POKE 41640,2
LDIR ; Fixed using POKE 41642,176
INC HL
INC DE
INC HL
INC DE
LD C,6
LDIR