Trouble with using encoder and pid library together

Projects Programming
9

I added an lcd.print to the readButton() function.

With 'PID myPID(&input, &output, &setpoint, 1.0, 1.0, 1.0, DIRECT );' commented out, it prints 1 when the button isn't clicked, and 0 when it's clicked (seems correct.) If I uncomment the PID code, it produces the number 42949552. I can't work out why!

Edit: If I comment out handleShortPress() and handleLongPress() it produced the 1 and 0 again.

Code below:

void readButton() {
  int reading = digitalRead(ENCODER_SW);
  
  lcd.setCursor(8, 0);
  lcd.print(int(reading));  
  if (reading != lastButtonState) lastDebounceTime = millis();

  if ((millis() - lastDebounceTime) > DEBOUNCE_DELAY) {
    if (reading != buttonState) {
      buttonState = reading;
      if (buttonState == LOW) {
        pressStartTime = millis();
        buttonPressedFlag = false;
      } else {
        unsigned long pressDuration = millis() - pressStartTime;
        if (pressDuration >= 500) {
          handleLongPress();

        } else if (!buttonPressedFlag) {
          handleShortPress();
      
          buttonPressedFlag = true;  // Prevent repeated short press handling
        }
      }
    }
  }
  lastButtonState = reading;
}