Function RecognizeWithUIAsync returns "Unknown" on Windows 11 ARM64 device

Question

When I use below codes on Windows 11 ARM64 device, returns result "Unknown" value. And speechRecognizer.state is "Idle". What is the reason? How to debug this issue?

Code lines:

            recognitionOperation = speechRecognizer.RecognizeWithUIAsync();

            SpeechRecognitionResult speechRecognitionResult = await recognitionOperation;