ParticleSystem.emission randomly wont reset

Hi everybody, So, Im trying to gradually turn two particle systems on and off via code In Unity 5.3.1f1. The system are on a toggleable platform (which I've made into a prefab) and there are multiple duplicates of the same platform.

the problem is that, when i activate to turn off and on cycle a few times one or more random platform wont start emitting the particles again..

If i pause the and check the editor the emission module appears to be toggled off or on as it should, but the particles wont render.

here's the code I'm using:

 using UnityEngine;
 using System.Collections;
 
 public class TimedPlatform : MonoBehaviour {
     BoxCollider2D col;
     float tempTime;
     public Transform rayStart;
     public Transform rayEnd;
     ParticleSystem bricks;
     ParticleSystem laser;
     ParticleSystem[] particles;
     ParticleSystem.EmissionModule em;
     ParticleSystem.EmissionModule emTwo;
     bool disabled = false;
     Color bricksColor;
     // Use this for initialization
     void Start () {
         particles = GetComponentsInChildren<ParticleSystem> ();
         col = GetComponentInChildren<BoxCollider2D> ();
         bricks = particles [0];
         laser = particles [1];
         bricksColor = bricks.startColor;
         em = bricks.emission;
         emTwo = laser.emission;
     }
 
     void DisablePlatform(){
         emTwo.enabled = false;
         em.enabled = false;
         col.enabled = false;
 }
     IEnumerator TimeOut(){
         yield return new WaitForSeconds (3);
         DisablePlatform ();
     }
         
     void FixedUpdate(){
         Vector3 startPoint = new Vector3 (rayStart.position.x, rayStart.position.y, 0);
         Vector3 endPoint = new Vector3 (rayEnd.position.x, rayEnd.position.y, 0);
         RaycastHit2D ray = Physics2D.Linecast(startPoint, endPoint);
         Debug.DrawLine(startPoint, endPoint, Color.red);
 
         if(ray.collider != null){
             if(ray.collider.tag == "Player"){
                 if (!disabled) {
                     tempTime = Time.fixedTime;
                     bricks.startColor = Color.red;
                     disabled = true;
                     StartCoroutine (TimeOut ());
                 }
             }
         }
         if (disabled) {
             if (tempTime + 10f < Time.fixedTime) {
                 emTwo.enabled = true;
                 em.enabled = true;
                 bricks.startColor = bricksColor;
                 col.enabled = true;
                 disabled = false;
             }
         }
     }
 }

I've tried using a few variations of this, like using IEnumirators instead of fixedTime, and while the code seemed to work the end result was the same.

Any Ideas?