Adding a track to the playlist (drag/drop, or double click) or when it starts a new track in the playlist, it will start to play the track but after around 10 seconds (seen between 7 and 14 seconds so far) the track will restart from the beginning. It doesn't restart the timeline however, and if the track is permitted to go to the end it will cut from the end the number of seconds it played before the restart. If I move the timeline pointer back it will restart properly but still cut, but if I actually stop the track and play again it will generally play properly.

It's also not every track or every time for a given track. When I launch from console (so as to see the console output) there is no indication of an issue or error.

Any good way to troubleshoot this further?