Thanks to your clue, I believe I finally found the issue!
It was a pretty obvious coding error in the handling of playing the next song when it has not ever been scrolled into view yet.
I will be submitting an update to Apple today to address it. Until the update is out, if you just scroll your pregame list all the way to the bottom before starting to play, it should avoid the issue.
Pretty crazy that bug has been there since the beginning. I wonder how many people ran into it and just ignored it.