Browse Music Folder - Ignoring Underscores in Ordering?

Is there a way to make Browse Music Folder actually order by the contents of the music folder? ie. I have a couple of folders that I always want to see at the top of the list. I have prepended them with the Underscore character. This used to work, but now doesn't.

thanks

(Logitech Media Server Version: 7.9.0 on Ubuntu 16.04LTS)