Eames, it looks like the paths in your example aren’t really open. I see a continuous loop without any endpoint. I never got a real font working in any common software (MacOS, Adobe…) because even if you leave open ends the type rendering part of the software always interprets it as a closed shape.
So if you draw the character ‘V’ as a single line going down and up again it would become something resembling a solid triangle V >> ▼
I did manage to get your example results with OTF fonts using Glyphs mini.