text not changing in build for android unity

The text updates fine in the editor and on a pc build but doesn't work on android builds for some reason any ideas?

     using UnityEngine;
     using System.Text;
     using System.IO;
     using System.Collections;
     using System;
     using UnityEngine.UI;
     using System.Collections.Generic;
     
     public class LoadSave : MonoBehaviour
     {
        // private string inventoryFilePath;
     
         private StreamWriter writer;
         public Text text;
         public Text hutTextField;
         void Start()
         {
            loadData();
             //loadTextfields();
         }
     
         void Update()
         {
             var inventoryComponent = GameObject.FindGameObjectWithTag("Inventory").GetComponent<Inventory>();
             var items = inventoryComponent.inventory;
             hutTextField = GameObject.Find("mytext").GetComponent<Text>();
             items[1].itemQuantity += 1;
             string test = items[1].itemQuantity.ToString();
             hutTextField.text = test;
             
     
     
         }   
      private void loadData()
         {
             StreamReader read = new StreamReader("inventory.txt");
             var inventoryComponent = GameObject.FindGameObjectWithTag("Inventory").GetComponent<Inventory>();
             var items = inventoryComponent.inventory;
             string readfile = read.ReadLine();
     
             while(readfile != null)
             {
                 char[] delimiter = {';'};
                 string[] input = readfile.Split(delimiter);
                 
                 items.Add(new Item(input[0], int.Parse(input[1]), input[2], int.Parse(input[3]), int.Parse(input[4]), int.Parse(input[5]), input[6], input[7], input[8]));
                 readfile = read.ReadLine();
             }
             read.Close();
         }
     
         public void saveData()
         {
            // Debug.Log("HERE");
             var itemDb =  GameObject.FindGameObjectWithTag("ItemDatabase").GetComponent<ItemDatabase>();
             writer = new StreamWriter("inventory.txt");
             var items = itemDb.items;
     
             for(int i = 0; i < items.Count; i++)
             {
                 string output = items[i].itemName + ";" + items[i].itemID.ToString() + ";" 
                     + items[i].itemDesc + ";" + items[i].itemQuantity.ToString() + ";" 
                     + items[i].itemPower.ToString() + ";" + items[i].itemWeight.ToString() + ";" 
                     + items[i].itemRequirement1 + ";" + items[i].itemRequirement2+ ";" + items[i].itemType;
                 writer.WriteLine(output);
             }
              writer.Close();
     
         }
     }

INVETORY CLASS

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class Inventory : MonoBehaviour {
     public List<Item> inventory = new List<Item>();
 
 
     // Use this for initialization
     void Start () {
     }
 
 
     // Update is called once per frame
     void Update()
     {
 
     }
 }

ITEMDATABASE CLASS

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class ItemDatabase : MonoBehaviour {
     public List<Item> items = new List<Item>();
 }

ITEMS CLASS

 using UnityEngine;
 using System.Collections;
 using System;
 
 [System.Serializable]
 public class Item {
 
     public string itemName;
     public int itemID;
     public string itemDesc;
     public Texture2D itemIcon;
     public int itemQuantity;
     public int itemPower;
     public int itemWeight;
     public string itemRequirement1;
     public string itemRequirement2;
     public Itemtype itemType;
     
     public enum Itemtype
     {
         Weapon,
         Consumable,
         normal
     }
 
     public Item(string name, int ID, string desc, int quantity, int power, int weight, string requirement1, string requirement2, string type)
     {
         var convertType = (Itemtype)Enum.Parse(typeof(Itemtype), type);
 
         itemName = name;
         itemID = ID;
         itemDesc = desc;
         itemIcon = Resources.Load<Texture2D>("Item Icons/" + name);
         itemQuantity = quantity;
         itemPower = power;
         itemWeight = weight;
         itemRequirement1 = requirement1;
         itemRequirement2 = requirement2;
         itemType = convertType;
     }
 }