If I'm inactive in the main menu of Jazz 2 for a little bit, the demo of gameplay from the second beach level autoplays. However, I can't exit that demo-playback and return to main menu by pressing the back-button on my Xbox gamepad, although it's no problem to exit the demo playback by pressing the Escape on the keyboard. I'm using the current build of JJ2+ (auto-updater updated to JJ2+ beta v6.2).