There is a crash on Windows related with removing (unpair) a device from the system.
Unfortunately, currently, to work with a BLE device on Windows one need to pair a device in the system first.
Then if a device is removed from the system while in the same time one tries to connect to it with QLowEnergyController::connectToDevice (QLowEnergyController is in ConnectingState), there is a crash (preceeded with an assert).
The crash itself is in the line: hr = result->get_Value(&buffer);. For me it seems that a QWinRTFunctions::await function returns an error but different than E_INVALIDARG. Thus the assert in Q_ASSERT_SUCCEEDED. However, because the function is stil executed there is a try to use result which is not available.