After called Quit()，Can not find any connectedable devices.

[playg8]

I am doing reconnect works.After called Quit() function, I found the scan func didm't work. I guess it is because the filter in c++ code worked in error.
IVector<hstring> requestedProperties = single_threaded_vector<hstring>({ L"System.Devices.Aep.DeviceAddress", L"System.Devices.Aep.IsConnected", L"System.Devices.Aep.Bluetooth.Le.IsConnectable" });
I need connect and disconnect.So, what can I do?

[adabru]

Do you get any error message in the bottom-left corner of the window?
Does a rescan work before calling Quit()?
As an alternative, maybe subscribe and unsubscribe are sufficient?

[playg8]

I think there is something wrong with the c# code.

1. when I want next scan, the cancel flag is still true, I must reset it
2. when I do scan、connect、disconnect for loops, it crashed after sometime,because you called Quit() in destructor function.
   I fixed it in my own code, now it works all right. C++ code is very good, no error.