In dev mode, when I want to enable / disable rev counter by pressing number 5, it is possible only when you hit number 5 repeately, same for any of those numbers and enter key to cycle rpm/tire temps/times etc.
Function keys seem to be working as before as are numpad keys for camera controls at swing man mode.
Also when returning from replay mode black bars of replay graphics come and go really really slowly.
I did test this with rtrainer and mod I'm working with, several times starting and shutting down rFactor2, but it seem not to be going away, but I will test today too and see if new day changes anything, also single player mode is something not yet tested.
edit: Tested single player and it is same, issue is new with this new version. I'm using usb keyboard, but I guess everyone these days.