new method RequestMtuAsync for Android doesnt work

[polipo]

The new method on last realease of Inthehand.BluetoothLe 4.0.36 for Android

the call:
bool status = deviceLE.Gatt.RequestMtuAsync(247).GetAwaiter().GetResult(); //result ok but if doens affect

seems to be work in logcat the output says status = 0 MTU = 247
but it doesnt affect!
This bug is present only if device MTU is == 0 in [device].Gatt.Mtu and only for Android device

I'm revert my code on last my modification and its works
var result = Task.Run(() => ((Android.Bluetooth.BluetoothGatt)_deviceLE.Gatt).RequestMtu(247)).GetAwaiter();
status = result.GetResult();
This works!