I have received a font quality complaint which seems to be related to Adobe Illustrator 2021. It does not occur in versions 2019 and 2020. In the app viewport, some outlines have kinks which are not part of vector outlines (image 1). When converted to outlines, the paths are clean, however the bump is still being rendered (image 2). In a png output file the bump is not present either (image 3). It seems to be a viewport rasterizer failure rather than font flaw. Please let me know if any additional information is required. I might not be able to disclose the subject font.

Thank you for considering,
Maciej Nadobnik