spawned clones are visible in scene tab but not visible in game tab

[subhnegi]

below code is used for spawning enemy character. problem is that the enemy which are spawning are not visible in game view , i can see them in scene view moving but in game view they are invisible , i have tried changing layer of characters , and also tried to align camera view but nothing is working

void Start()
{
    StartCoroutine(SpawnMonsters());
}

IEnumerator SpawnMonsters()
{
    while (true)
    {
        yield return new WaitForSeconds(Random.Range(1, 5));
        randomIndex = Random.Range(0, monsterReference.Length);
        randomSide = Random.Range(0, 2);
        spawnedmonster = Instantiate(monsterReference[randomIndex]);
        if (randomSide == 0)
        {
            spawnedmonster.transform.position = leftPos.position;
            spawnedmonster.GetComponent<monster>().speed = Random.Range(4, 10);
        }
        else
        {
            spawnedmonster.transform.position = rightPos.position;
            spawnedmonster.GetComponent<monster>().speed = -Random.Range(4, 10);
            spawnedmonster.transform.localScale = new Vector3(-1f, 1f, 1f);
        }
    }
}

[subhnegi]

as you can see in hierarchy tab clones are being spwaned and we can see them in scene view but not in game view