actually you will never get the error in PZLIb V3H if you use reflate dll and smaller value with -s
looks like the error is in razor methods(m1,m2) but not with reflate itself
try using something like pzlib:m2:x:s16:c96m:t100p
arc.ini
Code:
[External compressor:pzlib]
header = 0
packcmd = pzlib64 e {options} - -o - <stdin> <stdout>
unpackcmd = pZLib64 d -t100p - -o - <stdin> <stdout>