Не запускаются корутины при выполнении If, Unity

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class Enemy : MonoBehaviour
{
    public float jump_power;
 
    public float minX;
    public float maxX;
    public float pointX;
    public float axisZ;
    public float axisY;
    public float patrol_speed;
 
    public Transform target_player;
    public Transform AI;
    public Transform moveSpot;
    public float run_speed;
 
    private Rigidbody rb;
    public CapsuleCollider col;
 
    public float waitTime;
    public float startWaitTime;
    public LayerMask groundlayer;
 
    protected IEnumerator Jump()
    {
        if (isGrounded())
        {
            rb.AddForce(Vector3.up * jump_power, ForceMode.Impulse);
            yield return null;
        }
    }
 
    IEnumerator Run()
    {
        transform.LookAt(target_player);
        transform.Translate(Vector3.forward * run_speed * Time.deltaTime);
        yield return null;
    }
    // Start is called before the first frame update    
    void  Start()
    {
        jump_power = 25;
        rb = GetComponent<Rigidbody>();
        col = GetComponent<CapsuleCollider>();
        waitTime = startWaitTime;
        moveSpot.position = new Vector3(Random.Range(minX, maxX), axisY, axisZ);
    }
 
    // Update is called once per frame
 
    IEnumerator Patrol()
    {
            transform.position = Vector3.MoveTowards(transform.position, moveSpot.position, patrol_speed * Time.deltaTime);
 
            if (Vector3.Distance(transform.position, moveSpot.position) < 0.02f)
            {
                if (waitTime <= 0)
                {
                    
                    moveSpot.position = new Vector3(Random.Range(minX, maxX), axisY, axisZ);
                    waitTime = startWaitTime;
                    Debug.Log("Working = " + Time.deltaTime);
                }
                else
                {
                    waitTime -= Time.deltaTime;
                }
            }
 
            //Debug.Log(Time.deltaTime);
            yield return null;
 
    }
 
    private bool isGrounded() {
        return Physics.CheckCapsule(col.bounds.center, new Vector3(col.bounds.center.x, 
            col.bounds.min.y, col.bounds.center.z), col.radius*.9f, groundlayer);
    }
 
    void Update()
    {
        StartCoroutine(Run());
        float distance = Vector3.Distance(transform.position, target_player.position);
        Debug.Log("Distance =  " + distance);
        if (distance <= 8)
        {
            StopAllCoroutines();
            StartCoroutine(Patrol());
        }
        else if (distance <= 5)
        {
            StopAllCoroutines();
            StartCoroutine(Jump());
        }
    }
}