Hi merylann,
Your “Left moust button was released” condition cannot happen because at the very top, there is a “A new touch has started” condition (they cannot happen at the same time). The simple fix is to move “Change to scene “Supermarket Dash”” to the event above it.
That will make the scene immediately change to “Supermarket Dash” though without showing the “pressed” animation of StartButton, though. I can’t think of how to fix that yet.
Hope that helps