By "no longer works" I meant the following, i.e., no longer works correctly:
When one boots the program with a playlist already loaded from the previous
time and click on a song to play, the song plays, but the progress bar is
empty, so it is impossible to advance. Clicking on next track, however, causes
the progress bar to reappear like normal.
If one stops a song that is playing, then presses play again, there is no
progress bar indicator again. Push stop, then play again and it reappears.
This is all I have noticed so far.
I hope I really don't need to create a new user profile after all.