Support

Write to support@blackdogranch.com. It is a small invited group, so a real person reads it.

Two things that go wrong

Syncing says your Apple connection expired. Apple's user tokens do not last forever. Reconnect Apple Music on the app page; your moods and groupings are untouched by this.

A playlist is wrong. Apple offers no way to edit one after it is created — no reordering, no removing tracks, no renaming. Delete it in the Music app and ask for a new one.