Bluetooth crash when connectToPairedDevice on windows

in some cases, when i connected to a BLE device, QT crashed.

the crash happened in the function:

QLowEnergyControllerPrivateWinRTNew::connectToPairedDevice()

at line:

hr = QWinRTFunctions::await(op, result.GetAddressOf(), QWinRTFunctions::ProcessThreadEvents, 500);

or in the function setupLEDeviceWatcher() (when there are BLE device paired)

BT Device 4.2.
it is very often to happen.