Call sdk 1.9.0 doesn't find bluetooth device

I tried Android sample (GitHub - sendbird/quickstart-calls-directcall-android: Sendbird Calls for Android sample, guiding you to build a real-time voice and video calls quickly and easily. )

I checked AvailableAudioDevice, it contained “BLUETOOTH”
I updated sendbird-call:1.9.0, it didn’t contain “BLUETOOTH”.

should I use older version to use BLUETOOTH device?