Respawn not working properly upon scene reload. Why is this?

Question

So I made a respawn function and what is supposed to happen is the script it supposed to load a saved checkpoint. However I need to reset the scene (and again this worked just fine last night which was odd...).

Essentially the checkpoint waits for a player and then when the player enters the current checkpoint is written to a .txt file. Upon reload or death the scene is restarted, the .txt file is read and grabs the checkpoint. Everything works fine without Scene scene = SceneManager.GetActiveScene(); SceneManager.LoadScene(scene.name); //Reload scene. but I need that in order to "refresh" the scene.

CheckPoint Code:

using UnityEngine;
using System.Collections;

public class Checkpoint : MonoBehaviour {

    public LevelManager levelManager; //Empty level manager.

    // Use this for initialization
    void Start()
    {
       //levelManager = FindObjectOfType<LevelManager>(); //Unnneeded
    }

    void OnTriggerEnter(Collider coll)
    {
        if (coll.tag == "Player")
        {
            //levelManager.currentCheckPoint = gameObject; //<-DISABLE WHEN ES2 is fixed!!!
            Debug.Log("Activated Checkpoint " + transform.position);
            ES2.Save(gameObject.name, "myFile.txt?tag=checkpoint"); //Saves checkpoint to file.
        }
    }
}

LevelManger Code:

using UnityEngine;
    using System.Collections;
    using UnityEngine.SceneManagement;

    public class LevelManager : MonoBehaviour {

        [Tooltip("Note this will also serve as the spawnpoint for the player!")]
        public GameObject currentCheckPoint;
        private GameObject player;
        private int PHP;
        public int RespawnHP; //Amount of health to give player upon respawn.

        void Awake ()
        {

        }

        // Use this for initialization
        void Start ()
        {
            player = GameObject.FindGameObjectWithTag("Player");
        }

        // Update is called once per frame
        void Update ()
        {
            PHP = GameObject.Find("InventoryManager").GetComponent<InventoryManager>().PlayerHealth;

            if (PHP <= 0)
            {
                Debug.Log("Player HP has been depleted. Respawning.");
                RespawnPlayer();
            }

            if (Input.GetKeyDown("r"))
            {
                Debug.Log("Restarting level!");
                RespawnPlayer();
            }
        }

        public void RespawnPlayer()
        {
            Scene scene = SceneManager.GetActiveScene(); SceneManager.LoadScene(scene.name); //Reload scene.
            currentCheckPoint = GameObject.Find(ES2.Load<string>("myFile.txt?tag=checkpoint")); //Load saved checkpoint.
            Debug.Log("Player Respawning...");
            player.transform.position = currentCheckPoint.transform.position; 
            GameObject.Find("InventoryManager").GetComponent<InventoryManager>().PlayerHealth = RespawnHP;
        }

        void RestartLevel()
        {
            //ToDo: Restart level, and reload last check point.

        }

        public static void SaveLevel() //Saves the current level to file.
        {
            //ES2.Save(SceneManager.GetActiveScene().name, "myFile.txt?tag=levelName"); //Saves level to file.
            //ES2.Save("none", "myFile.txt?tag=checkpoint"); //Overwrite checkpoint?
        }
    }

Does anyone have a clue what is wrong? Like I said earlier the problem seems to arise on scene reloading.

Response to comment(s):

What behaviour are you observing at the moment? - Jack

Currently what happens is the player enters a checkpoint, the checkpoint is saved to a file, and upon respawn the checkpoint is loaded. After this I get spawned to the checkpoint that was saved but then immediately the level reloads itself and the player is not respawnd at the checkpoint. Here is a video to better demonstrate the issue (it will take a minute or two to finish up processing here as I've just pasted the link).

Answer 1

In your RespawnPlayer() method you are loading a scene at first. Then checking current position, then translating the player to the checkpoint.

Upon loading a new scene, everything resets. In RespawnPlayer() after second line execution, the level manager restarts from Start() ignoring the current checkpoint and player translate codes in RespawnPlayer(). In my first solution I just took three line from your RespawnPlayer() and put them Start(). Another line is just precaution.

Set your player object's position at Start().

Changes in your LevelManager script:

void Start ()
{
    player = GameObject.FindGameObjectWithTag("Player");
    //Get current checkpoint from file
    if(emptyFile)
    {
    currentCheckPoint = vector3.zero;//or default position
    }
    player.transform.position = currentCheckpoint.transform.position;
    //Set health value to player
}

public void RespawnPlayer()
{
Scene scene = SceneManager.GetActiveScene();
SceneManager.LoadScene(scene.name);
}

Or Instantiate your player at Start(). It's handy when you control multiple levels from Level Manager. Keep your "player" named prefab at Resources folder.

void Start ()
{
    //Get current checkpoint from file
    if(emptyFile)
    {
    currentCheckPoint = vector3.zero;//or default position
    }
    Instantitate(Resources.Load("player"), currentCheckpoint.transform.position, Quaternion.identity);
    //Set health value to player
}