Not an idea, really. More like I'm wondering... Do you get the same thing going on with an MM with fewer instances? Maybe after some threshold there's a problem with so many family members?
Maybe it's a quirk of the Library approach. have you tried putting it in one of the regular Fonts folders to check that?
Maybe it's a quirk of the Library approach. have you tried putting it in one of the regular Fonts folders to check that?