ArabicLetters automatic class misses a lot

I’m not sure of this is by design, but 2.3 handbook says:

ArabicLetters All glyphs of category ‘Letter’ and of the Arabic script present in the font

However only a small selection of glyphs matching these criteria are selected:

i.e. to positional glyphs (.init, .medi, etc). Compare this with AllLetters:

  • Are the glyph infos in question defined as category=Letter and script=Arabic?
  • Is the code up to date? What happens if you click on the update button (circled arrow)?

Yes for both.

The code is up to date I just created the class before taking the screenshot.

I fixed it.