Hi, I followed the Contextual Alternates tutorial step-by-step (included below) and everything worked out and was going great, exactly how the tutorial describes. Then I started adding punctuation and numerals, in a separate “Etc” class, and I stopped being able to access the CALT features tab, which now has a red exclamation mark.
https://glyphsapp.com/learn/features-part-3-advanced-contextual-alternates
Please let me know what I’m missing if you know, thanks in advance for the help!