You have a wrong event sheet selected for MenuLayout - "Overlay sheet 1".
Which, coincidentally also has "pressStart Flash" event, that's why your Press Start button was flashing.
One other thing - I suggest you change "Gamepad Is button down" to "Gamepad On button pressed".
"Is" condition is continuous, while it's true, the event is repeated about 60 times a second.
"On" is a triggered event, executed only once. Which is what you need in this case.