Can snap be made or changed yourself ?

[Rene Rechthaler]

I think the "snap" isnt in the File done with LDPE...
For LDCad and similar, there seems to be an own library for that.

maybe report the "error" to the respective threads:
https://forums.ldraw.org/thread-28313.html
https://forums.ldraw.org/thread-23807.html