buttons automatically scroll up (A btn event without pressing)

[martin072]

I have a small sketch that uses the ez menu and buttons, with ez.buttons.poll()
it seems that the left btn, button A is randomly triggered without touching it..

any idea's how this can be?

This is part of the sketch

void loop (
while(true) {
    String btn = ez.buttons.poll();
    if (btn !="" ) {
      Serial.print("BTN Feedback: ");
      Serial.print(btn);
    }
    if (btn == "up") {
      Serial.println("BTN UP Pressed");
      tUP();
      break;
    }else if (btn == "settings") {
      menuSettings();
      break;
    } else if (btn == "down") {
      Serial.println("BTN DOWN Pressed");  <---- Triggered without pushing the button (nothing connected to the M5stack)
      tDOWN();
      break;
    }
  }
}