Enemies running when they should be following.

I've got a basic follow script set up for a set of enemies. The script is supposed to make the enemy look at the player up to a certain distance and, when the player gets close enough, follow the player. The script sort of works, but for some reason, when I set the maximum follow distance to anything above 10, the enemies will run away from the player instead. If I somehow get the player to the with the 10 range of the enemy before they spawn they will follow as they are supposed to.

Here's the entire enemy code:

 public float MaxDistance = 10.0f;
 public float MoveSpeed = 5.0f;
 public float MinDistance = 0.0f;
 public Transform Target;
 public float LookAtDistance = 10.0f;
 public float Distance;
 public float Damping = 5.0f;
 private Quaternion rotation;
 public bool parenting = false;
 private PlayerHealth_Test playerHealth;
 private float nextDam;
 //private Bank rolling;
 public bool rolling = false;
 public float DamDelay = 2.0f;
 private Leech_Mother_AI_Test spawnCount;
 private GameObject LeechMother;
 
 
 
 void Start (){
 
     Target = GameObject.FindGameObjectWithTag ("Player").transform;
     playerHealth = Target.GetComponent<PlayerHealth_Test>();
     parenting = false;
     // rolling = Target.GetComponent<Bank>();
     nextDam = Time.time + DamDelay;
     GameObject spawner = GameObject.Find ("Leech_Mother");
     
     spawnCount = spawner.GetComponent<Leech_Mother_AI_Test>();
     
     
 }
 
 
 void OnTriggerEnter(Collider Player)
     {
         transform.parent = GameObject.FindGameObjectWithTag("Player").transform;        
             parenting = true;    
         }
     
 void Update () {
         
 
     Distance = Vector3.Distance (Target.position + Target.transform.forward, transform.position);
         
     if (Distance < LookAtDistance)
     {
         LookAt();
     }
         
     if (Distance > MinDistance && Distance < MaxDistance && parenting == false)
     {
         follow ();
     }
         
     if (rolling == true)
         {
             parenting = false;
             GameObject.Destroy(this.gameObject);
             
             spawnCount.SpawnDown(1f);
         }
         
     if (parenting == true && nextDam <= Time.time)
         {
             nextDam = Time.time + DamDelay;
             playerHealth.CurrentHealth -= 1.0f;
         }    
         
     if (parenting == true && playerHealth.CurrentHealth <= 0)
         {
             parenting = false;    
         }
         
 }
 
 void LookAt(){
 
     rotation = Quaternion.LookRotation (Target.localPosition - transform.position);
     transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * Damping);
     
 }
     
 void follow(){
         
     transform.Translate(Vector3.forward * MoveSpeed * Time.deltaTime);
         
         
 }
 
     
     
 }