Tilemap Color

in the script I change the color of the set block from the tilemap, but sometimes the original color appears, and only then it is repainted.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using Achievements;
4. using UnityEngine;
5. using UnityEngine.Tilemaps;
6. using UnityEngine.UI;
7.  
8. public class TileSlimeSpawn : MonoBehaviour
9. {
10.     private GameObject player;
11.     public Tile[] slimeTile;
12.     [SerializeField] private GameObject platforma;
13.     private Tilemap slimeMap;
14.     private Vector3Int previous;
15.     private bool isGround, isLight;
16.     [SerializeField] private float radiusCheck;
17.     public LayerMask whatIsGround;
18.     public LayerMask whatIsLight;
19.     [SerializeField] GameObject lightForSlime;
20.  
21.     [SerializeField] Color color;
22.  
23.     private bool isCeiling = false;
24.  
25.     private void Start()
26.     {
27.         slimeMap = GetComponent<Tilemap>();
28.         if (PlayerPrefs.GetString("SlimeColor").Length < 2)
29.         {
30.             color = new Color(0.1120868f, 0.754717f, 0f, 0.7176471f);
31.         }
32.         else
33.         {
34.             color = JsonUtility.FromJson<Color>(PlayerPrefs.GetString("SlimeColor"));
35.         }
36.  
37.  
38.         if (tag == "RightWall")
39.         {
40.             GameObject go = GameObject.Find("RightSlimeWall");
41.             slimeMap = go.GetComponent<Tilemap>();
42.         }
43.  
44.         if (tag == "LeftWall")
45.         {
46.             GameObject go = GameObject.Find("LeftSlimeWall");
47.             slimeMap = go.GetComponent<Tilemap>();
48.         }
49.  
50.         if (tag == "GroundCheck")
51.         {
52.             GameObject go = GameObject.Find("GroundSlime");
53.             slimeMap = go.GetComponent<Tilemap>();
54.         }
55.  
56.         if (tag == "Ceiling")
57.         {
58.             GameObject go = GameObject.Find("Ceiling");
59.             slimeMap = go.GetComponent<Tilemap>();
60.             isCeiling = true;
61.         }
62.     }
63.  
64.     void FixedUpdate()
65.     {
66.         if (slimeMap == null)
67.         {
68.             Start();
69.         }
70.  
71.         Vector3Int currentCell = slimeMap.WorldToCell(transform.position);
72.         isGround = Physics2D.OverlapCircle(transform.position, radiusCheck, whatIsGround);
73.         isLight = Physics2D.OverlapCircle(transform.position, radiusCheck, whatIsLight);
74.         slimeMap.SetTileFlags(currentCell, TileFlags.None);
75.         slimeMap.SetColor(currentCell, color);
76.  
77.  
78.         if ((isGround == true) && (isLight == false) && (currentCell != previous))
79.         {
80.             slimeMap.SetTile(currentCell, slimeTile[Random.Range(0, 4)]);
81.             AchievementHandler.IncrementAchievement(Achievement.LEAVE_500_TILES);
82.             if (isCeiling) AchievementHandler.IncrementAchievement(Achievement.LEAVE_100_TILES_ON_CEILING);
83.             Instantiate(lightForSlime, transform.position, Quaternion.identity);
84.             previous = currentCell;
85.         }
86.     }
87. }