Razor! the error comes with only this type of method-
Pzlib+msc+srep+lzma not for lzma2 and 4x4 lzma and PZB v.0.42. I gain 37% ratio on a single ".forge" file of 238mb but during extraction same problem occur which is felice program cmdbench occur. There is not any bug on programs in both two but has in pzlib + lzma2 which is putted in ultraarc & cmdbench.
I also tried with PZB v.0.38
But failed during extraction