Ligatures stylistic sets disconnecting

Glyphs
1

Hello,
I am having problems with certain stylistic set ligatures, when I am using the font and switch to a different stylistic set of a ligature it disconnects from the previous letter (naming is fine, so is the coding in ss01/rlig). Not sure why this happens.
Any advice is much appreciated
PS this is an arabic font.

2

In which order are the features? What is the name of the ligature glyph? And where is it not working?

3

@mekkablue

sheen_reh-ar.fina.ss01
and
beh_heh-ar.init.ss01

these are the ones just quickly off the top of my head. and most reoccurring.
It is not working in inDesign and illustrator

Below is the features.

Screenshot 2022-05-20 at 7.28.31 pm
Screenshot 2022-05-20 at 7.28.31 pm262×1084 57.7 KB

4

Can you please send me the .glyphs file to support (at) (this website without ‘www’ or ‘forum’). I will have a look.

1 Like
5

Sent

6

Thank you for the file. It works for me exported from Glyphs 3.0.5 (3129) and InDesign 17.2.1.

Consider:

  1. Recompiling features
  2. The following structure in rlig:
script arab;

lookup rlig_arab_0 {
	lookupflag RightToLeft IgnoreMarks;
    ...
} rlig_arab_0;

lookup contextual_arab {
	lookupflag RightToLeft IgnoreMarks;
    ...
} contextual_arab;

The RightToLeft lookup flag was not essential for InDesign. But pay attention to the position of the script statement.

  1. When applying the feature in InDesign, double check:
  • World-Ready Composer is used (Paragraph palette menu),
  • the whole word is selected when you apply the stylistic set, otherwise you may break the style continuity. In World-Ready Composer all letters involved in the ligature need to be selected, in this case both sheen and reh, or respectively, both beh and heh.