Keypad blues

From the cold start, my VF-0 boots normally, gets the alarm page (normal) indicating 8?,9?. When I hit the reset button, nothing. None of the keypad buttons seem to function. E-stop works, on/off works. Service seems to think a button is stuck or the keypad gave up. Seems like it would be a reliable part. It is a membrane keypad, not the button type. Anyone else have a keypad fail?

my keypad failed on my hl-4 easy to replace

Thanks for the reply, but now it looks like it is not the keyboard. They want to replace the pro$$$$$$$$$$$e$$$$$er.