Apologies for the lateness. Here's the changes to get it working.

In controlsScript, here's the new loop -

      // Check Particle Effects
        foreach (MoveParticleEffect particleEffect in move.particleEffects)
        {
            if (
                !particleEffect.casted &&
                particleEffect.particleEffect.prefab != null &&
                move.currentFrame >= particleEffect.castingFrame
                )
            {

                particleEffect.casted = true;

                Vector3 newPosition = myHitBoxesScript.GetPosition(particleEffect.particleEffect.bodyPart);

                GameObject pTemp;

                if (particleEffect.particleEffect.isWeaponTrail)
                {

                    pTemp = (GameObject)Instantiate(particleEffect.particleEffect.prefab,
                                               newPosition,
                                               Quaternion.identity);


                    Vector3 endPosition = myHitBoxesScript.GetPosition(particleEffect.particleEffect.bodyPartEnd);

                    pTemp.transform.parent = myHitBoxesScript.GetTransform(particleEffect.particleEffect.bodyPart);

                    XftWeapon.XWeaponTrail xComp = pTemp.GetComponent<XftWeapon.XWeaponTrail>();

                    xComp.PointStart.position = newPosition;
                    xComp.PointEnd.position = endPosition;

                }
                else
                {

                    newPosition.x += particleEffect.particleEffect.positionOffSet.x * -mirror;
                    newPosition.y += particleEffect.particleEffect.positionOffSet.y;
                    newPosition.z += particleEffect.particleEffect.positionOffSet.z;

                    pTemp = (GameObject)Instantiate(particleEffect.particleEffect.prefab,
                                                     newPosition,
                                                     Quaternion.identity);

                    if (particleEffect.particleEffect.stick) pTemp.transform.parent = myHitBoxesScript.GetTransform(particleEffect.particleEffect.bodyPart);

                }

                StopParticleDelay spComp = pTemp.GetComponent<StopParticleDelay>();

                if (spComp != null)
                {
                    spComp.stopDelay = particleEffect.particleEffect.duration;
                }
                else
                {
                    Destroy(pTemp, particleEffect.particleEffect.duration);
                }

            }
        } 

In XWeaponTrail.cs - replace the Deactivate() method with this one -

   public void Deactivate()
        {
            gameObject.SetActive(false);
            if (mMeshObj != null)
            {
                mMeshObj.SetActive(false);
                mVertexPool.SetMeshObjectActive(false);
                Destroy(mMeshObj);
            }

            Destroy(gameObject);
        }