How to cancel/stop/interfere specific animation in animator?!?

Hello devs! I have an issue and I can't find any solution. Using Third Person Animator and related scripts. What I'm trying to achieve? While [Input.GetButtonDown("Fire1")] it plays spell casting animation, which is about 3 seconds and I want to cancel that animation by moving to any direction or jumping. Right now I can't interfere/stop animation while is not finished.

Code (CSharp):

1.  private CharacterControl m_Character; // A reference to the ThirdPersonCharacter on the object
2.     private Transform m_Cam;                  // A reference to the main camera in the scenes transform
3.     private Vector3 m_CamForward;             // The current forward direction of the camera
4.     private Vector3 m_Move;
5.     private bool m_Jump;                      // the world-relative desired move direction, calculated from the camForward and user input.
6.  
7.     private void Start()
8.     {
9.         //get the transform of the main camera
10.         if (Camera.main != null)
11.         {
12.             m_Cam = Camera.main.transform;
13.         }
14.         else
15.         {
16.             Debug.LogWarning(
17.                 "Warning: no main camera found. Third person character needs a Camera tagged \"MainCamera\", for camera-relative controls.", gameObject);
18.             // we use self-relative controls in this case, which probably isn't what the user wants, but hey, we warned them!
19.         }
20.         // get the third person character ( this should never be null due to require component )
21.         m_Character = GetComponent<CharacterControl>();
22.     }
23.  
24.  
25.     private void Update()
26.     {
27.         if (!m_Jump)
28.         {
29.             m_Jump = Input.GetButtonDown("Jump");
30.         }
31.     }
32.  
33.     // Fixed update is called in sync with physics
34.     private void FixedUpdate()
35.     {
36.         // read inputs
37.         float h = Input.GetAxis("Horizontal");
38.         float v = Input.GetAxis("Vertical");
39.  
40.         // calculate move direction to pass to character
41.         if (m_Cam != null)
42.         {
43.             m_CamForward = Vector3.Scale(m_Cam.forward, new Vector3(1, 0, 1)).normalized; // 1, 0, 1
44.             m_Move = v * m_CamForward + h * m_Cam.right;
45.         }
46.         else
47.         {
48.             // we use world-relative directions in the case of no main camera
49.             m_Move = v * Vector3.forward + h * Vector3.right;
50.         }
51.  
52.         //if (Input.GetKey(KeyCode.Mouse0))
53.         //{
54.         //    m_Character.Shooting(true);
55.         //}
56.         //else
57.         //{
58.         //    m_Character.Shooting(false);
59.         //}
60.  
61.         if (Input.GetButtonDown("Fire1"))
62.         {
63.             m_Character.Shooting(true);
64.         }
65.         else
66.         {
67.             m_Character.Shooting(false);
68.         }
69.         //if (Input.GetKey(KeyCode.LeftShift)) m_Move *= 2f;
70.         // pass all parameters to the character control script
71.         m_Character.Move(m_Move, m_Jump);
72.         m_Jump = false;
73.     }

From Controller extra bit:

Code (CSharp):

1.     public void Shooting(bool action)
2.     {
3.         if (m_IsGrounded)
4.         {
5.             m_Animator.SetBool("Shooting", action);
6.         }
7.     }

Other things:
In animator every transition (Has Exit Time) is not ticked except 1 transition to Exit, because it freezes the character completely after the spell casting animation finishes. (Image attached).

I've tried to change interruption sources but no luck.

If I use [Input.GetKey(KeyCode.Mouse0)] instead I can release the mouse and animation stops at any time but if I hold till the end of animation the character freezes of the last frame. This could be an alternative option but I could not manage to restart the animation or change the state into e.g. Grounded.

Any possible solution?

Thanks!