I can’t export any font that has mkmk feature with glyphs 3 the exporting issues appre like the attached screen, but If I disabled the mkmk it works well, Also, the exporting issues are not valid or right, can you fix this
Did you write the mkmk feature code in File → Font Info… → Features? Generally, you should not need to write that code manually since Glyphs generates the mkmk feature code behind the scenes at export.
yes, I write some exceptional situations in File → Font Info… → Features manually to avoid any overlapping between two letters marks, as you see in the attached image I added an end code line to make sure all good
What version of Glyphs do you have?
Can you update to the latest cutting edge version (activate it in Preferences > Updates).
@GeorgSeifert still the same error, when I try to export with mkmk feature, but when I deactivate it, it is export successfully