Firebase Background Handler Interfering with BLE Scanning (Smart Scale)

[khanish007]

I am using Flutter + a local plugin (icdevicemanager) to scan for a Smart Scale using BLE. However, when the Firebase background handler is initialized, the BLE scanning stops working. The data is comes in native code but not able to land in setMethodCallHandler in flutter. When i remove the FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler); scale scan works perfectly fine. This issue only occurs in android.
I want to use both firebase and scanning part.
Any guidance or solutions would be appreciated! Thanks. 🙌