Clicking UI button calls event twice

Question

I've designed a game where, when a button is clicked, the moving point stops. If the button is clicked again, the moving point starts moving again.

I only click on the button once, but the ToggleGame() is always called twice. Does anyone know the reason?

private void Start()
{
     
    if (toggleButton != null)
    {
        toggleButton.onClick.AddListener(ToggleGame);
    }
 
    StartGame();
}
 
public void StartGame()
{
    isMoving = true;
    // init some settings here
}
 
void Update()
{
    if (isMoving)
    {
       // run the game
    }
}
 
public void ToggleGame()
{
    if (!isMoving)
    {
        StartGame();
        UpdateButtonText("Stop");
    }
    else
    {
        isMoving = false;      
        CheckWinCondition();
        UpdateButtonText("Start");
    }
}

Answer 1

This thread may help you. Here's a summary:

You may have your left-click set to 'submit' in input settings and it is both calling a submit and select event on your single-click of the toggle-button. The user in the linked thread reported solving the issue by removing 'mouse 0' from the 'submit' bind in input settings