Something minor I've noticed, but I'm sure you'd like to be aware of:
When applying more than 2 filters to any given music list, the result # of files as well as the names of the active filters all shift to the right in the status bar at the bottom of the window. In fact, it shifts to the right to the point that most of the active filters display off the window.
1. select "MusicBrainz unique ID does not exist"
2. select "MusicIP accoustic ID does not exist"
-> the resulting list of songs is correct, but the active filters above fall off the screen on the status bar.