Synchronizing to an USB-Stick from Playlists

[Zeitgenosse]

MM 4.1.19.1859 WIN10 Home 1703 15063.726

Hi
For use in my car I synchronized a playlist to an USB-Stick.
I have organized my PLs in a tree-structure. I checked the playlist, the playlists on higher levels are not checked but greyed out.
After synchronization not only the checked playlist but also the greyed PLs (with songs!) are copied.
Regards

[Lowlander]

Yes, this is by design. All Parent Playlists of a checked Child Playlist are also synced.