Points system doesn't work

So I'm using corgi engine to make a platforming game. And something weird happened. This is my code:

 using System.Collections;
 using System.Collections.Generic;
 using MoreMountains.CorgiEngine;
 using UnityEngine;
 
 public class EnableOnPoints : MonoBehaviour
 { 
     [SerializeField] GameManager gameManager;
     [SerializeField] GameObject gate;
     // Start is called before the first frame update
     void Start()
     {
     }
 
     // Update is called once per frame
     void Update()
     {
         int currentPoints = gameManager.Points;
         if(currentPoints >= 60) {
             gate.SetActive(true);
         }
 
     }
 }

The problem is this logic works only when you load the scene separately... Like this code is for level 4 and if you loaded that level separately it would work but if you finished level 3 and went to level 4 it wouldn't work...

And I have no clue what the problem is. Any help would be reaaaally appreciated.

Edit: I just realized this was happening because the "Game Managers" Game object which contained the "Game manager" script was using a singleton pattern from the previous levels so I changed the code to this: using System.Collections; using System.Collections.Generic; using MoreMountains.CorgiEngine; using UnityEngine;

 public class EnableOnPoints : MonoBehaviour
 { 
     GameManager gameManager;
     [SerializeField] GameObject gate;
     // Start is called before the first frame update
     void Start()
     {
         gameManager = FindObjectOfType<GameManager>();
     }
 
     // Update is called once per frame
     void Update()
     {
         int currentPoints = gameManager.Points;
         if(currentPoints >= 60) {
             gate.SetActive(true);
         }
 
     }
 }

But still, the exact same thing happens :(( please help...