When I double click on a song in the Playing Tracks list, most of the time this causes the list to scroll.
Sometimes it seems intentional, if I double click a song near the bottom it will automatically scroll up a bit to show a few songs after the selected one.
Sometimes it seems unintentional, double clicking a song in the middle of the visible portion of the list can still cause it to scroll.
In either case, it makes the list a bit difficult to use when jumping between multiple songs in succession (e.g., trying to find a particular song when you forget the name), due to the list position changing often and sometimes unpredictably.
I think just the unintentional seeming scrolling is a bug. A feature request may be to allow automatic scrolling on double click to be disabled entirely as an option.
Thanks for considering my feedback.