startEstimoteBeaconDiscovery returns empty list

BLE Beacons
1

This functions always returns me empty list every second.

func utilityManager(_ manager: ESTUtilityManager, didDiscover beacons: [ESTBluetoothBeacon]) { print("didDiscover: %d",beacons.count) }
The outout is always:
didDiscover: 0

Device is:
-iPhone SE
-iOS 10.0.2

2

I am sorry, my beacons are using hardware revision G and I have to user ESTDeviceManager instead of ESTUtilityManagerDelegate…