I’m running into a problem with kerning breaking after a mark is attached (via lookup in ccmp).
In the PDF, in image 1 and 2, everything is working correctly. The ՞ mark combines with ե and kerning is preserved between եչ.
In Image 3 and 4, this is a new file with T is set to non-export.
Image 3: եչ kerning is still preserved.
Image 4: After adding the combining mark, the kerning between եչ breaks.
The issue seems to be happening when there is no other kerning aside from the Armenian, i.e. if the remaining kerning pair is removed (in this example, between Tu) or the Latin glyphs are deleted/set to non-exporting.
Version 2.6.7 (1354)
ccmp_kern_issue_1.pdf (555.4 KB)