Auto Detect Source language is giving result only in the last element of the Source Language Configuration List

I'm using Azure Speech to Text SDK version 1.21 in Golang. Here I'm adding a feature of Auto-detect language for the audio file using


engLangConfing, err := speech.NewSourceLanguageConfigFromLanguageAndEndpointId("en-us", "endpoint-id")
// error handling
sourceLanguageConfigs := []*speech.SourceLanguageConfig{engLangConfing}

langs = []string{"uk-ua", "ja-jp", "hi-in", "pt-pt"}

for _, lang := range langs {
    conf, err := speech.NewSourceLanguageConfigFromLanguage(lang)
    if err != nil {
        log.Error(err.Error())
        continue
    }
    sourceLanguageConfigs = append(sourceLanguageConfigs, conf)
}

langConfig,err := speech.NewAutoDetectSourceLanguageConfigFromLanguageConfigs(sourceLanguageConfigs)
// error handling
recognizer,err := speech.NewSpeechRecognizerFomAutoDetectSourceLangConfig(speechConfig, langConfig, audioConfig)

Here, I'm giving a slice of Source Language Configurations for multiple languages including a configuration for a Custom Model with an endpoint.

This gives a wrong result. It returns transcribed text using the last element of the sourceLanguageConfigs Slice. It's not identifying the correct language. I've checked it multiple times by reordering the elements of the slice and still, I'm getting the transcribed text in the last source language config only.

Do I have to add any property?

Why is it happening, can anyone help with it?

microsoft / cognitive-services-speech-sdk-go

Auto Detect Source language is giving result only in the last element of the Source Language Configuration List #108