Hm, I had noticed that it wasn't displaying filenames anymore, but I hadn't realized why.
If the View Scheme doesn't include the Name field, then Quick Play won't either. I'm not sure what I think about that. I can see some areas where that would be useful, and others where it could be confusing and frustrating.
I guess the question is, why would you want to put the Name of a track on the tree? The only thing I can think of is so you can add songs to Playing Now without ever having to leave Playing Now. But that only works if you remember to never left click on that song. If you try a double click to add to Playing Now, it will work, but you'll jump out of Playing Now in the process.
So it seems incomplete to me.
Ideally, I'd like to see Quick Play ignore the Name portion of a View Scheme, and just populate the list like it used to, only ordering by Track Number (for albums), and not alphabetically.