I just spent the entire afternoon and evening producing exports for ten families and was just about to call it a successful night, when I saw that my Latin-only families all included the Cyrillic.
I have a Remove Glyphs parameter set to script=cyrillic. This used to work fine. Why in the world is this broken again?
Sorry for the rather frustrated tone, but this really makes me want to go and smash some plates.
Using 3213, this used to work fine in previous versions.