Tweens problem

c#

    private void Destructible_OnDeath(GameObject source)
    {
        transform.parent = GameManager.Misc.transform;

        Vector3 initialScale = transform.localScale;
        Vector3 initialPosition = transform.position;
        System.Action<ITween<float>> animUpdate = (t) =>
        {
            transform.localScale = initialScale * (1 + t.CurrentProgress * 0.5f);
            baseRenderer.material.color = new Color(1, 1, 1, 1 * (1 - t.CurrentProgress));
            transform.position = initialPosition + new Vector3(0, 0.35f, 0) * t.CurrentProgress;
        };

        System.Action<ITween<float>> animFinish = (t) => //This doesn't get called sometimes, leaving half transparent object in the scene
        {
            Destroy(gameObject);
        };

        gameObject.Tween("updatePos", 0f, 1f, 0.6f, TweenScaleFunctions.CubicEaseOut, animUpdate, animFinish);
        //StartCoroutine("DestroyDelayed", 0.65f);
    }