Bug (or stupid) with GetBool() in Unity 2020?

Question

Unity

Hello! For some reason the negation of GetBool() does not work. Yesterday it worked, today it doesn't.

private Animator _doorAnimator;

    private void Start()
    {
        _doorAnimator = GetComponent<Animator>();
    }
    
    public void DoorInteracting()
    {
        _doorAnimator.SetBool("IsDoorOpen", !_doorAnimator.GetBool("IsDoorOpen"));
    }

Answer 1

100% stupid. What do you mean it doesn't work? Well, print out what it returns to you.
When boolean operations break, the world will collapse