"Identity->GetLoginStatus(0)" always return "LoggedIn"

I completed a learning of The EOS Online Subsystem (OSS) Plugin.

I’d like to make it work without .bat files. But, “Identity->GetLoginStatus(0)” always return “LoggedIn”, so AEOSPlayerController::Login() is not working. Do you know why? When I set a breakpoint, the program’s processing look to return NotLoggedIn.