Egad!! No, I don’t have any straightforward means of detecting duplicate paths. I’ll have to ponder how it occured, with an eye to seeing if I need to build in a safeguard of some sort.
Glad you found it, sorry it happened. 8^) At the least, I will manually look for more in the .svg files which define the characters.
The error is in the .svg file for that face, rather than in the Visual Basic transform-to-Hershey program. This most likely means it was a human error (mine), and therefore is hopefully not likely to be endemic.
I’ve remedied the error, but have to dash out the door this second, so won’t get it into dropbox for about another ten hours.