I have a TelerikGrid that I set the filter state using the OnStateInit method. This work fine and the menu item shows up blue to indicate that it is in use, but when I choose that column menu and the Filter option an unhandled exception occurs.
I have produced a demo and been able to reproduce the issue, located here - https://blazorrepl.telerik.com/wcYDwFbw26v6wIqr52
I'm guessing that there is some setup missing, but from reading the documentation, I can't seem to find it.