Problems with [ExecuteInEditMode]

I have this script which takes Empty GameObjects and translates their position to Unity's built-in IK system for the 4 limbs of my character. I want it to run in edit mode, because I want to animate the Empty GameObjects with Unity's animation, and I also want to see the translation to the limbs. I do not see where I messed up, I used [ExecuteInEditMode], and it is not. It also isn't outputting the message in Start.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 [ExecuteInEditMode]
 public class IkProceduralAnimation : MonoBehaviour
 {
     Animator anim;
     public Transform LeftArmIkTarget;
     public Transform RightArmIkTarget;
     public Transform LeftLegIkTarget;
     public Transform RightLegIkTarget;
 
     public Transform Head;
     public Transform UpperTorso;
     public Transform LowerTorso;
 
     float ikWeight = 1;
     // Use this for initialization
     void Start()
     {
         anim = GetComponent<Animator>();
         Debug.Log("Starting In Edit Mode");
     }
 
     // Update is called once per frame
     void Update()
     {
       
     }
 
     void OnAnimatorIK()
     {
         anim.SetIKPositionWeight(AvatarIKGoal.LeftFoot, ikWeight);
         anim.SetIKPosition(AvatarIKGoal.LeftFoot, LeftLegIkTarget.position);
 
         anim.SetIKPositionWeight(AvatarIKGoal.RightFoot, ikWeight);
         anim.SetIKPosition(AvatarIKGoal.RightFoot, RightLegIkTarget.position);
 
         anim.SetIKPositionWeight(AvatarIKGoal.LeftHand, ikWeight);
         anim.SetIKPosition(AvatarIKGoal.LeftHand, LeftArmIkTarget.position);
 
         anim.SetIKPositionWeight(AvatarIKGoal.RightHand, ikWeight);
         anim.SetIKPosition(AvatarIKGoal.RightHand, RightArmIkTarget.position);
     }
 
 
 }

Any help will be greatly appreciated!