Lam_alef-ar ligature problem (Arabic)

hello for all

Iam working on an arabic font
I have a problem with lam_alef ligature on adobe illustrator on windows only
it work correctly on Mac and on Microsoft office on windows also it works well

(the problem only with adobe on windows)

the code in rlig
sub lam-ar.init alef-ar.fina by lam_alef-ar;

it must appears like this

but it appears like this

where is the problem ??
only in adobe on window os

thanks in advance

@khaled @qassimhaider @HadiTypeStudio @GeorgSeifert @mekkablue

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good luck Mohamed in your new font, be sure you put “LamAlef” ligature code in rlig feature, try also to check any Font Cache on windows.

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@mekkablue @GeorgSeifert

any helping this point ?

Did it try it in illustrator on Mac? Or in Indesign?
And does the same text works as expected with a different font?

Yes it work in all mac apps
In window it work on word but only don’t work on adobe apps on windows and i test it in two different computers the same problem

In case that your font works perfectly on Glyphs & on any X app that supports Arabic normally, that’s mean that your font is perfect.

& here few things that might help you:

1- Please complete the full necessary letters, & Arabic Marks.
2- Always update the features + generate the features automatically.
3- Every time rename the exported font file with a new name for testing (Recommended).
4- Make sure you are testing the latest exported font in the right way:

5- Make sure that you are testing the same texts (exactly).

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Not sure the Adobe Fonts folder works the same way for Adobe apps on Windows. Never tried.

But Qassim is right. It could very well be a cache problem.

It could also be an OpenType problem. Do you have all necessary positional variants (in this case especially lam_alef-ar.init)? And a setting that could be in the way. Perhaps a stylistic set that is turned on and blocks the positional features. Try making an .ai file on the Mac and open it on Windows.