Since some days I newly get an altert from time to time that tells me that KM needs allowance for «Screen & System Audio Recordings» although KM has these rights already in the System Settings.
Unfortunately, something else is bugging it then—maybe it's a bug in the beta OS, who knows. If you really want to try it, you can wipe the entire accessibility system's settings and start fresh, though I don't recommend this on a production Mac, as you'll be clicking "Yes" for the next three days as apps ask for approval to do things.
But if you want to try, in Terminal: tccutil reset Accessibility then reboot.