I've just updated my Note8 to Android Pie and now when I make a phone call, I can't end the call or use the keypad to make selections. The calls are made and connect ok but none of the inputs I make during a call actually work. I've managed to go to the settings and opt for using the power button to end calls but I still can't use the keypad to choose options and it doesn't show up on the my screen that a call is in progress. Also, the screen doesnt go off while I'm on a call anymore either.
As well as that issue, the phone is now a lot slower to respond to inputs at times, especially when using the default keyboard.
Other than "Don't do the update in the first place", has anyone got any ideas how to rectify this please?