DeviceFoundAsync spuriously throws an Exception

[ChristianSauer]

This does not happen all the time, but rarely. Looks like a race condition for me:

Stacktraces I managed to capture:

Message: Value does not fall within the expected range.

at System.BluetoothLe.Adapter.DeviceFoundAsync(BluetoothLEAdvertisementWatcher watcher, BluetoothLEAdvertisementReceivedEventArgs btAdv)\r\n   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)\r\n   at System.Threading.ThreadPoolWorkQueue.Dispatch()\r\n   at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()

or

"Message":"Schwerwiegender Fehler (0x8000FFFF (E_UNEXPECTED))"

 at System.BluetoothLe.Adapter.DeviceFoundAsync(BluetoothLEAdvertisementWatcher watcher, BluetoothLEAdvertisementReceivedEventArgs btAdv)\r\n   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)\r\n   at System.Threading.ThreadPoolWorkQueue.Dispatch()

both seem to be thrown unobserved, which makes catching them difficult.

I do not have more stacktraces atm, this mangled stuff comes from our error reporting system.