Resolved Animation playing even if the condition is not met

I have simple project with one character from Mixamo. I setup the animator and it is working fine but it has a issue. The character is transitioning from idle to walk with "w" key and transitioning to run with "w+left shift" key.
Animator has two boolean parameters called isWalking and isRunning. When I press "w" key it is working as expected and pressing "w+left shift" is working too but as soon as I release the left shift the isRunning parameter is setting to false but the player is still in running animation. Why is that happening?

Code (CSharp):

1. using UnityEngine;
2.  
3. public class AnimationStateController : MonoBehaviour
4. {
5.     private Animator _animator;
6.     private static readonly int IsWalking = Animator.StringToHash("isWalking");
7.     private static readonly int IsRunning = Animator.StringToHash("isRunning");
8.  
9.     private void Awake()
10.     {
11.         _animator = GetComponent<Animator>();
12.     }
13.  
14.     private void Update()
15.     {
16.         var isMoveKeyPressed = Input.GetKey(KeyCode.W);
17.         _animator.SetBool(IsWalking, isMoveKeyPressed);
18.         _animator.SetBool(IsRunning, isMoveKeyPressed && Input.GetKey(KeyCode.LeftShift));
19.     }
20. }

 

Silly me I forget to change the transition condition to isRunning=false