# G4: Adding Unicode to a glyph with a saved custom category triggers sidebar errors

**URL:** <https://forum.glyphsapp.com/t/g4-adding-unicode-to-a-glyph-with-a-saved-custom-category-triggers-sidebar-errors/37193>\
**Category:** Glyphs\
**Tags:** bug\
**Created:** [September 3, 2026, 12:36am UTC](https://forum.glyphsapp.com/t/g4-adding-unicode-to-a-glyph-with-a-saved-custom-category-triggers-sidebar-errors/37193 "2026-09-03T00:36:57Z")\
**Posts on this page:** 1\
**Showing post:** 2

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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:** [September 3, 2026, 9:11am UTC](https://forum.glyphsapp.com/t/g4-adding-unicode-to-a-glyph-with-a-saved-custom-category-triggers-sidebar-errors/37193/2 "2026-09-03T09:11:24Z")

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Many thanks for the reproducible test case. I was after this for some time … Fixed it.

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_[View the full topic](https://forum.glyphsapp.com/t/g4-adding-unicode-to-a-glyph-with-a-saved-custom-category-triggers-sidebar-errors/37193)._