I am using New Input System, Starter Asset – Third Person Controller

I wanted to include new input and animations (from Mixamo).
Which I successfully put. However, there is a problem: when I press Z to Sit then moving WASD, the player can move while sitting.

I want player do not move (or disable movement) when doing the animation Sit.

StarterAssetsInputs.cs

[Header("Character Input Values")]
        public Vector2 move;
        public Vector2 look;
        public bool jump;
        public bool sprint;
        
        public bool sit; //my input

        [Header("Movement Settings")]
        public bool analogMovement;

        [Header("Mouse Cursor Settings")]
        public bool cursorLocked = true;
        public bool cursorInputForLook = true;

        public bool disableMovement = false; //my input

public void OnSit(InputValue value)
        {
            SitInput(value.isPressed);
        }

public void SitInput(bool newSitInput)
        {
            if (newSitInput)
            {
                sit = !sit;
                disableMovement = sit;
            }
        }

ThirdPersonControllers.cs

// animation IDs
        private int _animIDSpeed;
        private int _animIDGrounded;
        private int _animIDJump;
        private int _animIDFreeFall;
        private int _animIDMotionSpeed;
        
        private int _animIDSit; //my input

ENABLE_INPUT_SYSTEM 
        private PlayerInput _playerInput;
#endif
        private Animator _animator;
        private CharacterController _controller;
        private StarterAssetsInputs _input;
        private GameObject _mainCamera;

        private const float _threshold = 0.01f;

        private bool _hasAnimator;

private void Update()
        {
            _hasAnimator = TryGetComponent(out _animator);
    
            JumpAndGravity();
            GroundedCheck();
            Move();
            Sit();
        }

 private void AssignAnimationIDs()
        {
            _animIDSpeed = Animator.StringToHash("Speed");
            _animIDGrounded = Animator.StringToHash("Grounded");
            _animIDJump = Animator.StringToHash("Jump");
            _animIDFreeFall = Animator.StringToHash("FreeFall");
            _animIDMotionSpeed = Animator.StringToHash("MotionSpeed");
            _animIDSit = Animator.StringToHash("Sitting");//my input
        }

 void Sit()
        {
            if (_hasAnimator)
            {
                _animator.SetBool(_animIDSit, _input.sit);

            }
        }

• What did I try : I did put the code directly to StarterAssetsInputs.cs and ThirdPersonControllers.cs that already available from Unity Store. I just put my code according to some YT and forum.

• What were I expecting is… I want player do not move (or disable movement) when doing the animation Sit.

Thank you.