C-8 Pro Bluetooth Integration (Beta) — Speaker discovery stops after Echo pairing attempt

Hardware: Hubitat C-8 Pro
Platform: 2.5.2.129 initially, subsequently updated to 2.5.2.139

Initially, Bluetooth Integration successfully discovered four devices, including an Echo Dot, two Bluetooth audio devices, and a Samsung TV.

I attempted to pair the Echo using the Pair w/Alexa option. The pairing did not complete, and the logs subsequently showed:

method appButtonHandler of app Bluetooth Integration (beta) ran for 166,992ms

Since then, Bluetooth speaker discovery consistently returns No Bluetooth speakers found.

Troubleshooting completed:

  • Restarted the Bluetooth integration.

  • Removed and reinstalled the integration.

  • Updated the Hubitat platform.

  • Removed the integration, rebooted the C-8 Pro, and reinstalled it.

  • Tested with a Bose SoundLink Color confirmed to be in Bluetooth pairing mode.

Discovery still returns no devices.

Is there a known issue with the Bluetooth service following an unsuccessful Alexa pairing attempt? Is there a way to reset the Bluetooth subsystem independently of the integration?