Bug Array of class with arrays in it, bug in inspector

Hi, I'm using Unity 2021.1.0f1 Personal.
I was trying to create a script to randomize meshes:

Code (CSharp):

1. using System;
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class MeshRandomizer : MonoBehaviour
7. {
8.     [SerializeField]
9.     private Transform Head;
10.     [SerializeField]
11.     private Transform Body;
12.     [SerializeField]
13.     private Transform Weapon;
14.     [SerializeField]
15.     private Transform Shield;
16.  
17.     [Serializable]
18.     private class Tier
19.     {
20.         public bool Enabled;
21.         public Mesh[] Heads;
22.         public Mesh[] Bodies;
23.         public Mesh[] Weapons;
24.         public Mesh[] Shields;
25.     }
26.    
27.     [SerializeField]
28.     private Tier[] Tiers;
29.     [SerializeField]
30.     private Material Color;
31.    
32.     void Awake()
33.     {
34.         Head.GetComponent<Renderer>().material = Color;
35.         Body.GetComponent<Renderer>().material = Color;
36.         Weapon.GetComponent<Renderer>().material = Color;
37.         Shield.GetComponent<Renderer>().material = Color;
38.  
39. //        Head.GetComponent<MeshFilter>().sharedMesh = Heads[Random.Range(0, Heads.Length)];
40. //        Body.GetComponent<SkinnedMeshRenderer>().sharedMesh = Bodies[Random.Range(0, Bodies.Length)];
41. //        Weapon.GetComponent<MeshFilter>().sharedMesh = Weapons[Random.Range(0, Weapons.Length)];
42. //        Shield.GetComponent<MeshFilter>().sharedMesh = Shields[Random.Range(0, Shields.Length)];
43.     }
44.  
45. }
46.  

Though, the problem is that the inspector doesn't push the other arrays down, so when I try to see the arrays in the inspector, they are behind the others

 

I have the same bug