FaceTime shows persistent notification badge on macOS with no unread calls

Hello, I’m experiencing an issue with FaceTime on my Mac. The FaceTime app icon shows a persistent notification badge (red bubble with “1”), but I’m absolutely sure there are no unread calls, missed calls, or messages.

Here’s what I’ve already tried, none of which solved the problem:

Restarted the Mac multiple times

Signed out of FaceTime and signed back in

Deleted FaceTime-related cache and preference files

The badge remains even though FaceTime itself shows no unread activity. Everything appears normal inside the app.