Unable to enumerate voices in QTextToSpeech on Android

[VictorTee]

I'm trying to use QTextToSpeech and allow the user to select the Locale they want, but when I try to list them out by iterating over what availableLocales returns, it looks to be empty. The code looks something like this:

    this->m_speech=new QTextToSpeech();
...
    QList<QLocale> availableLocales=this->m_speech->availableLocales();
    QLocale locale(savedLocale);
    for (const auto &item : availableLocales)
    {
        this->log(item.name()+"\n");
        this->ui->localeComboBox->addItem(item.name());
    }

When I check the current locale with this->m_speech->locale().name(), it's set to en_US. Is there some quirk with Android that I'm not aware of?

Using QT 6.10.0