When ever i instantiate my enemy it turns invisible

So I made a simple enemy with following A.I. and the ability to harm the player upon contact and it works perfectly it dies when it should ect and I made a enemy summoning script that summons enemies at a certain location every 2 second but despite the game object I put in place to instantiate working it turns invisible only in the game view it can be seen in the scene view and it cant harm the player but it can still follow the player.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class CMONDUDE : MonoBehaviour
6. {
7.     public GameObject here;
8.     public GameObject WhatToSpawn;
9.     public float TimeBetweenSpawns;
10.     private float SpawnTime;
11.  
12.     private void Update()
13.     {
14.         SpawnTime -= Time.deltaTime;
15.         if (SpawnTime <= 0)
16.         {
17.             summon();
18.             SpawnTime = TimeBetweenSpawns;
19.         }
20.     }
21.     void summon()
22.     {
23.         Instantiate(WhatToSpawn, here.transform.position, Quaternion.identity);
24.     }
25. }

 

Update I fixed the visual glitch but now I'm trying to figure out why the collision isn't working

 

What are the collider settings in the Inspector?

 

I fixed the problems thanks for your concern