Unity Random.Range Issue

I am currently implementing a sheep AI into my game but pretty soon they all choose to go to the same spot, i can't for the life of me work out what is wrong as i am reading the output for the random number and it works fine for about 20 seconds then it just defaults to 94..... Just for clarification i have a master gameobject with about 150 children that are possible points for the ai to go to. Any help is appreciated XD

A Video Of The Issue Can Be Found Here: https://youtu.be/J1Eo3SoXsbw

My Sheep Controller Code:

     enum PossibleActions { Idle, Eating, Walking, RunningForExit }
     PossibleActions currentAction;
 
     GameObject locations;
     NavMeshAgent agent;
     public float timeLeftOfIdle, timeLeftOfWalking, timeLeftOfEating = 10f;
 
     public bool doAi = false;
     public bool doAnim = true;
 
     public bool forceMove = false;
     public Animator anim;
 
     // Use this for initialization
     void Start()
     {
         if (!(GameInfo.Instance.isHost)) { GetComponent<NavMeshAgent>().enabled = false; this.enabled = false; }
         anim = GetComponentInChildren<Animator>();
         locations = GameInfo.Instance.SheepNavigationLocations;
         agent = GetComponent<NavMeshAgent>();
 
         Debug.Log("Start Method Calling For " + transform.name);
         currentAction = pickAction(true);
         pickLocation();
 
     }
 
     // Update is called once per frame
     void Update()
     {
         if (doAi)
         {
             if (currentAction == PossibleActions.Eating)
             {
                 timeLeftOfEating -= Time.deltaTime;
                 if (timeLeftOfEating <= 0.1f)
                 {
                     //Eating time limit hit pick a new task
                     currentAction = pickAction(forceMove);
                 }
             }
             else if (currentAction == PossibleActions.Idle)
             {
                 timeLeftOfIdle -= Time.deltaTime;
                 if (timeLeftOfIdle <= 0.1f)
                 {
                     //Idle time limit hit pick a new task
                     currentAction = pickAction(forceMove);
                 }
             }
             else if (currentAction == PossibleActions.Walking)
             {
 
                 timeLeftOfWalking -= Time.deltaTime;
                 if (timeLeftOfWalking <= 0.1f)
                 {
                     //Walking time limit hit pick a new task
                     currentAction = pickAction(forceMove);
                 }
                 else if (!agent.pathPending)
                 {
                     if (agent.remainingDistance <= agent.stoppingDistance)
                     {
                         if (!agent.hasPath || agent.velocity.sqrMagnitude == 0f)
                         {
                             //Reached destination pick a new task
                             Debug.Log(transform.name + " Sheep Reached Its Destination");
                             currentAction = pickAction(forceMove);
                         }
                     }
                 }
             }
             else if (currentAction == PossibleActions.RunningForExit)
             {
                 currentAction = pickAction(forceMove);
             }
         }
     }
 
     PossibleActions pickAction(bool forceMove = false)
     {
         timeLeftOfWalking = Random.Range(5, 25);
         agent.SetDestination(pickLocation());
         WalkAnim();
         Debug.Log("Walking For " + transform.name + "Forcemove: " + forceMove);
         return PossibleActions.Walking;
   
     }
 
     Vector3 pickLocation()
     {
         int childNum = Random.Range(0, locations.transform.childCount - 1);
         Debug.Log("Picked Num:" + childNum);
         return locations.transform.GetChild(childNum).transform.position;
     }