NotchStar Now Playing stopped working after a macOS update
NotchStar reads Now Playing through an interface Apple does not document and has restricted before. Since macOS 15.4, third party apps cannot read it directly, so NotchStar loads an open source adapter through Apple’s own perl. If an update breaks that route, Music and Spotify still work through AppleScript, but other apps may stop showing.
What you will see
- Music and Spotify keep appearing, possibly with a placeholder instead of a cover or no progress bar.
- A browser or another player that used to appear is now “Nothing playing”.
What NotchStar does on its own
If the adapter says nothing within about three seconds, or ends unexpectedly, NotchStar switches to AppleScript polling for Music and Spotify. That keeps the card from freezing.
What you can do
- Quit NotchStar and open it again.
- Make sure you run the latest NotchStar version, because adapter fixes arrive as app updates.
- Check Automation permission for Music and Spotify.
- For other apps, check if they appear in Control Center’s Now Playing. If macOS hides them there, NotchStar cannot read them.
Honest limit
This route can break with any macOS release. Apple controls it, and I cannot promise otherwise. See which apps show up, the background guide and the Now Playing page.