Why is there a delay in switching on and off?

Question

Unity

Hello. There are two icons responsible for turning the sound on and off. the question is why it turned out so that they switch through one click. that is, once pressed, a crossed-out icon appeared, and the third time a normal one appeared, etc. How can I make them change on every click?

public GameObject  m_on, m_off;
    bool isPlayed;
    

    public void SoundOnOff()
    {
       if (!isPlayed)
        {
            m_on.SetActive(false);
            m_off.SetActive(true);
            Time.timeScale = 1;
            isPlayed = true;
         
        }
       else if(isPlayed)
        {
            m_on.SetActive(true);
            m_off.SetActive(false);
            Time.timeScale = 0;
            isPlayed = false;
        }
               
    }

Answer 1

At a minimum, write immediately bool isPlayed=true;
That is, your icons are out of sync with the code.