Hi Paul,

If this happens again, please let us know.

The issue sounds a lot like what happens if someone makes a repeat without checking the "Generate (insert) new bars" checkbox, but really shouldn't be happening when your chorus repeats.

It's possible that re-opening the song fixed it because it had been forced to regenerate, so be sure to try clicking Generate and Play instead of Play if the problem comes back and see if that makes a difference.

Thanks
Kent
PG Music