Hey there,
I have a bug that sometimes songs just won´t stop. The song is over but Stagetraxx just keeps on running and doesn´t switch to the next song in my setlist. Even the "remaining time" goes to negative.

This issue seems to appear totally random.
I also once had the problem, that I changed the setlist and deleted a song, but once I came to the point that this song once was it wasn´t shown but when I pressed the play button the song was played.