# Kerning entries are dropped due to use of custom glyph order

**URL:** <https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810>\
**Category:** Glyphs\
**Tags:** export, bug\
**Created:** [January 27, 2026, 11:42pm UTC](https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810 "2026-01-27T23:42:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Cozmic72](https://forum.glyphsapp.com/letter_avatar_proxy/v4/letter/c/7ba0ec/32.png) [@Cozmic72](https://forum.glyphsapp.com/u/Cozmic72)\
**Post date:** [January 27, 2026, 11:42pm UTC](https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810/1 "2026-01-27T23:42:03Z")

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I am developing a typeface with Shavian and Roman glyphs. My kerning groups are shared across the two scripts, as there are several letters with similar shapes, and the Latin kerning makes sense for Shavian too.

I had been focussing on the Shavian kerning until today, when I added some latin specific kerning pairs - `@f @o -40`, as a specific example. The kerning was working beautifully in Glyphs, but not in any of my exported instances.

When I examined the exported instances, I couldn’t find the `@f @o` or similar rules. But I did notice that ‘o’ was considered to be in the kerning group ‘u+10452’, which is`”kick-shavian"`. In my `glyphspackage`, that glyph is in fact in the``@o`` lhs kerning group.

After banging my head against the wall for a while, on a whim, I removed my custom glyph order parameter. That fixed it!

My custom glyph order puts the Shavian letters at the front. It seems that this reordering upsets the kerning table export algorithm? I’m fine working without it for now, but it would be nice to be able to specify arbitrary glyph orders without messing up exports.

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**Author:** ![GeorgSeifert](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/georgseifert/32/259_2.png) [@GeorgSeifert](https://forum.glyphsapp.com/u/GeorgSeifert)\
**Post date:** [January 27, 2026, 11:58pm UTC](https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810/2 "2026-01-27T23:58:32Z")

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Can you send me a sample font with the glyphOrder that breaks the kerning?

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**Author:** ![Cozmic72](https://forum.glyphsapp.com/letter_avatar_proxy/v4/letter/c/7ba0ec/32.png) [@Cozmic72](https://forum.glyphsapp.com/u/Cozmic72)\
**Post date:** [January 29, 2026, 7:34pm UTC](https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810/3 "2026-01-29T19:34:30Z")

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Sure, will send you a link in a DM.

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<div class="post-metadata">

**Author:** ![Cozmic72](https://forum.glyphsapp.com/letter_avatar_proxy/v4/letter/c/7ba0ec/32.png) [@Cozmic72](https://forum.glyphsapp.com/u/Cozmic72)\
**Post date:** [January 29, 2026, 9:09pm UTC](https://forum.glyphsapp.com/t/kerning-entries-are-dropped-due-to-use-of-custom-glyph-order/35810/4 "2026-01-29T21:09:53Z")

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I am now not sure whether it was the custom glyph order or something else related to my use of the supplementary multilingual plane?

Even having removed my glyph order, I still have issues with kerning in my Variable Font - it is totally missing from anything but the first master. My kerning _is_ compatible between all masters.

Let me know whether you’d like me to create a separate post for that issue.