Most Playlists Greyed Out

I've just gone into Mezzmo to do a few tweaks after a stable period.

Call my main listing "Subjects". Under Subjects I have a variety of types of menu entry - e.g. Action, Clint Eastwood, TV Shows, and Next To Watch.

Outside of Subjects I have menu items including Home Movies, Years and Top 50.

When I go into a Subject to modify the filter, all of the settings are blanked out, except Change Artwork. On every Subject.

When I go into a playlist which is outside of Subjects, I can change the filters as expected.

Is it me or a bug?

In the current version of Mezzmo (v4.1.3.0), you cannot change the filters & settings (except artwork) for sub-folders or sub-active playlists. You can only do this for the top-level folder or top-level active playlist that you added into your Mezzmo library.

In the upcoming Mezzmo v5.0, we do allow you to change more settings (such as content rating, sorting, display titles, poster & backdrop) for sub-folders and sub-active playlists via the Properties dialog.