Problem with LDView primitive substitution

[Travis Cobbs]

It seems that primitive substitution doesn't work on some hires cones. Case in point, 48\1-4con19 used in this part: https://www.ldraw.org/cgi-bin/ptdetail.c...s/2745.dat
At high substitution levels cone no longer matches cylinder.
This concerns all LDView versions I could test, from 4.1 to 4.4.1beta2

I'll investigate. I think my filename parsing is broken for the 48 cones with a 2-digit size.