We've identified an issue with the "Charts" category of font-icons ( https://docs.telerik.com/kendo-ui/styles-and-layout/icons-web#charts) . All others work as expected
The charts category only seems to work if a custom class is created, to reference the unicode
We have a dojo created here for quick repro:
https://dojo.telerik.com/ozizeBok/2
Thank you