Steps to duplicate:

1. go to Track 1, and play to anywhere higher 0:00.
2. hit skip-back to get to 0:00,
3. hit skip-back a 2nd time.
4. Track stays at 0:00, which is intended behavior, but error message is displayed above the play-button: "An error occurred during playback. Error code: 31011."
5. If play is hit in this state, even though start-point shows between 00:00-00:03, for example, the play will skip forward to 15 seconds before the end of the first track and start there.

This was observed on three different books.