Issue with matrix keypad vs pull up buttons (in the code)

[GoForSmoke]

@d.raymond

byte key = (byte)keypad.getKey();
if (key){
  gotKey = true;
  pressedKey = key - 1;
  key = 0;
}

Perhaps set gotKey = false before if (key) {makes it true}
unless you do that elsewhere?

Otherwise once true always true.

Holy cow the delays you use!

BTW, you can run a button matrix with 1 diode per button on INPUT_PULLUP pin power alone.