Sounds like you used CD-Wave to split your tracks, because it doesn't pad out the last track with the necessary samples at the end. If you play multiple shows back to back, you may hear a blip between shows, but if you're just playing one show, it's really not anything you should be concerned about. Going forward, it might be worthwhile to pad that last track (which I believe xACT does by default) but it's not a big deal.