UI Appear not appearing after build

Good day! I was trying to make an interaction with some of my objects when the player gaze at the object for 2 secs, an image should appear (screen space - Camera) . However, it is working fine on my Game view and editor but after building it for my android device , image won't appear , I even tried adding a button but had the same problem.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class UIAppear : MonoBehaviour
 {
 
     [SerializeField] private Image customImage; 
     const float nSecond = 2f;
     float timer = 0;
     bool entered = false;
 
 
     void Update()
     {
         //If pointer is pointing on the object, start the timer
         if (entered)
         {
             //Increment timer
             timer += Time.deltaTime;
 
             //Load scene if counter has reached the nSecond
             if (timer > nSecond)
             {
                 Debug.Log("Pressed left click.");
                 customImage.enabled = true;
             }
         }
         else
         {
             //Reset timer when it's no longer pointing
             customImage.enabled = false;
             timer = 0;
         }
 
     }
 
     public void PointerEnter()
     {
         entered = true;
 
     }
 
     public void PointerExit()
     {
         entered = false;
     }
 
     void PointerDown()
     {
 
     }
 
 }

This is for the Image that will appear

For the trigger