# Glyphs 4 Stroke Interpolation Quirk

**URL:** <https://forum.glyphsapp.com/t/glyphs-4-stroke-interpolation-quirk/37309>\
**Category:** Glyphs\
**Tags:** bug\
**Created:** [September 19, 2026, 10:47pm UTC](https://forum.glyphsapp.com/t/glyphs-4-stroke-interpolation-quirk/37309 "2026-09-19T22:47:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![smllsmpl](https://forum.glyphsapp.com/user_avatar/forum.glyphsapp.com/smllsmpl/32/28106_2.png) [@smllsmpl](https://forum.glyphsapp.com/u/smllsmpl)\
**Post date:** [September 19, 2026, 10:47pm UTC](https://forum.glyphsapp.com/t/glyphs-4-stroke-interpolation-quirk/37309/1 "2026-09-19T22:47:43Z")

</div>

[stroke-interpolation-quirk.glyphs](https://forum.glyphsapp.com/uploads/short-url/ov4nCNohuqVsBQ6BbaNwVHIVLIW.glyphs) (8.9 KB)

I’m seeing quirks in stroke interpolation in my ‘S’. I isolated the character in the attached Glyphs file. You can see the quirky interpolation in the screen shots.

 ![Untitled 5](https://forum.glyphsapp.com/uploads/default/original/3X/6/c/6c5a1f26fe82e6b32b22fd39e72fa1e072d13f66.jpeg)

 ![Untitled 4](https://forum.glyphsapp.com/uploads/default/original/3X/4/0/40751a58875c080b7a6c0e9cd4743965010c2555.jpeg)

 ![Untitled 3](https://forum.glyphsapp.com/uploads/default/original/3X/7/6/76650d35786bf8a84a5407858415d736fbecdd07.jpeg)

 ![Untitled 2](https://forum.glyphsapp.com/uploads/default/original/3X/2/6/26f7ed8e9518bc05a75dab0f710ab5d53a5c500b.jpeg)