"Siri Unavailable" error when using Cmd + Shift + 6, but other Siri features work

I am experiencing a persistent issue with Siri on the latest version of macOS. When I use the keyboard shortcut (Cmd + Shift + 6), I receive an error pop-up stating: "Siri Unavailable. Unable to connect to Siri. Try again later."

Interestingly, Siri works perfectly fine through other methods, such as the menu bar or chat. The issue only occurs when using the keyboard shortcut.

Here are the troubleshooting steps I have already taken:

• Restarted my Mac
• Verified my internet connection is stable
• Toggled Siri off and on in System Settings

Despite these steps, the problem persists. Has anyone else experienced this, or does anyone know how to fix it?