I am currently using Setlist Maker in landscape with song list on left and lyrics on right (pretty typical setup).
While playing a song with lyrics scrolling, I have noticed the song list scrolling every few seconds. So much so, that by the time I get to the end of the song, I can't see the title in the song list.
Has anyone else experienced this?
It sounds like you have Settings > General Settings > Auto-Scroll > Auto-Scroll Set List turned on. You can turn that off to stop this behavior.