Particle rotation problems in Unity 2017.1.0f3

Hi everyone. After updating to Unity 2017.1.0f3 I have had a problem with the rotation of spawned particle systems, I am using gameObjects with particle systems and firing their rigidbodies as bullets in a game.

In the old version of unity the bullets inherit the value of the gun they are spawned from, but in updated Unity the bullets or at least their particle systems seem seem to be given the rotation of the world space. I have included the bullet firing code below.

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 
 public class UniversalShooterScript : MonoBehaviour {
 
     //Weapon Values
     [SerializeField]
     Rigidbody projectile;
     public float speed;
     [SerializeField]
     float refireRate;
     bool canFire;
 
     //Effect
     [SerializeField]
     AudioClip[] fireSound;
     AudioSource source;
     [SerializeField] ParticleSystem onShot;
     public int emitAmount;
 
     //Energy Drain
     public PowerCapacity power;
     [SerializeField] float energyDrain;
    
     //Hangar Values
     public string weaponName;
     public string weaponType;
     public GameObject descText;
     GameObject inHangar;
 
     public void Start()
     {
         canFire = true;
         StartCoroutine(getPower());
         StartCoroutine(seeIfHangarTrue());
     }
     IEnumerator seeIfHangarTrue()
     {
         inHangar = GameObject.Find("HangarManager").gameObject;
         yield return new WaitForEndOfFrame();
         
         if (inHangar != null)
         {
             canFire = false;
         }
         else if(inHangar == null)
         {
             canFire = true;
         }
         yield return new WaitForSeconds(2f);
         StartCoroutine(seeIfHangarTrue());
     }
 
     IEnumerator getPower()
     {
         yield return new WaitForEndOfFrame();
         power = GameObject.FindWithTag("Player").GetComponent<PowerCapacity>();
     }
     void Update () {
         if (Input.GetMouseButton(1) && (canFire) && (power.currentCapacity >= energyDrain)) { 
         
             StartCoroutine("Shoot");
          power.currentCapacity -= energyDrain;   
         }    
     }
     IEnumerator Shoot() {
         {
             StartCoroutine(playParticle());
             Rigidbody instantiatedProjectile = Instantiate(projectile,transform.position,transform.rotation)
               as Rigidbody;
             
            instantiatedProjectile.velocity = transform.TransformDirection(new Vector3(0,0,speed));
             {
                 canFire = false;
                 yield return new WaitForSeconds(refireRate);
                 canFire = true;
             }
         }
     }
     IEnumerator playParticle ()
     {
         onShot.Emit(emitAmount);
         yield return new WaitForEndOfFrame();
     } 
 }
 

These gifs show the problem in the first gif bullets face forward from their firing point... Before. [img]https://i.imgur.com/k3Z2w7V.gif[/img] ...Where as in the second gif the bullets fly facing the same direction all the time even no matter the rotation of the gun. After. [img]https://i.imgur.com/aR7sw1s.gif[/img]

Any help would be greatly appreciated, thank you.