Scene not loading properly everytime

[ROOOOCKSTAR]

Hi, I’m doing a 2D game for Android.

I have a first scene having 1 button.

The second scene is the game itself, a lot of objects loaded, then destroyed, interactions, etc…
I configured the “Escape” button on this scene to go back to the first scene when pressed.
There are enemies spawning randomly.

However, it seems like when I press escape to go back to the first scene, nothing is loaded (I see blue screen like there is nothing) sometimes. After doing some tests, I realized that, if on the second scene, one or more enemies are spawned, if I press the button, then nothing is loaded on scene 1. If I deactivate Enemies (delete InvokeRepeate, or deactivate the prefabs), then it works well everytime.

So my question is, what thing in a scene can prevent another one to load properly ? Thanks.

EDIT:

Okay so first I have my button in the menu, when you press it you Load the TEST scene (the game):

	void Update () {

		if (Input.touchCount > 0) {
			
			for (int i = 0; i < Input.touchCount; i++) {
				Vector3 wp = Camera.main.ScreenToWorldPoint (Input.GetTouch (i).position);
				Vector2 touchPos1 = new Vector2 (wp.x-0.5f, wp.y-0.5f);
				Vector2 touchPos2 = new Vector2 (wp.x+0.5f, wp.y+0.5f);
				if (this.collider2D == Physics2D.OverlapArea(touchPos1,touchPos2)) {
					
					
					if (Input.GetTouch (i).phase == TouchPhase.Began)
					{
						Application.LoadLevel("test");
					}
	
	}
}
		}
	}

Now on the game scene I have a Invoker script, random values are used for random spawning:

public class InvokeEnemies : MonoBehaviour {

public GameObject Enemies;
public GameObject Asteroids;

private float randomx;
private float randomy;

void Start () {
	InvokeRepeating ("CreateAsteroids", 2f, 5f); 

}

void CreateAsteroids()
{
	float randoma = 0;
	float randoma2 = 0;
	int area = Random.Range (0, 3);
	switch (area) {
	case 0:
	{
		randoma = Random.Range(-8f,8f);
		randoma2 = Random.Range(-5f,-6f);
		break;
	}
	case 1:
	{
		randoma = Random.Range(-8f,-9f);
		randoma2 = Random.Range(-5f,5f);
		break;
	}
	case 2:
	{
		randoma = Random.Range(-8f,8f);
		randoma2 = Random.Range(5f,6f);
		break;
	}
	case 3:
	{
		randoma = Random.Range(8f,9f);
		randoma2 = Random.Range(-5f,5f);
		break;
	}
	}

	Instantiate (Asteroids, new Vector3 (randoma, randoma2, 6f), Quaternion.identity);

	}

}

Here is the asteroids code:

public class AsteroidOnTouch : MonoBehaviour {
	private DontDestroyParticles myscript;
	public ParticleSystem explosion;
	private ParticleSystem explode;
	private int touchCount;
	// Use this for initialization
	void Start () {

		touchCount = 3;
		
	}
	
	// Update is called once per frame
	void Update () {
		
		if (Input.touchCount > 0) {
			
			for (int i = 0; i < Input.touchCount; i++) {
				Vector3 wp = Camera.main.ScreenToWorldPoint (Input.GetTouch (i).position);
				Vector2 touchPos1 = new Vector2 (wp.x-0.5f, wp.y-0.5f);
				Vector2 touchPos2 = new Vector2 (wp.x+0.5f, wp.y+0.5f);
				if (this.collider2D == Physics2D.OverlapArea(touchPos1,touchPos2)) {
					
					
					if (Input.GetTouch (i).phase == TouchPhase.Began)


					{			
						if (touchCount == 0)
						{
						myscript = GetComponentInChildren<DontDestroyParticles>();
						myscript.DetachParticles();
						explode = Instantiate (explosion,transform.position,Quaternion.identity) as ParticleSystem;
						Destroy (explode.gameObject,5);
						Destroy (this.gameObject);
						}
						else
						{
							touchCount--;
						}
					}	
				}
			}
		} else {
		}
	}
}

When I disable Asteroids, then loading is always good. When there is at least one, it doesn’t work. I just set the escape button to go back to the scene Menu when pressed.

	void Update () {
		if (Input.GetKeyDown(KeyCode.Escape)) { Application.LoadLevel("menu"); }

	}

[ROOOOCKSTAR]

It seemed I figured out what is wrong (but I don’t why). It looks like if I don’t destroy manually the particles still alive on the scene before loading the next scene, then the load will be screwed up.

So far, the best thing I found is to destroy every particle remaining in the scene manually (FindGameObjectswithtag “particles” for example).

Is it a normal behaviour ? Thanks.

[KMKxJOEY1]

Something that happens in one scene should not affect how a separate scene is loaded; you probably have another problem. Post some code.

[Niloy]

I have a Particle Destroy Code that might help you. Attach this script to every of your Particles. They will get automatically destroyed after finishing particle process.

using UnityEngine;
using System.Collections;

public class Kill_Explosion : MonoBehaviour {
	private ParticleSystem ps;
	// Use this for initialization
	void Start () {
		ps = GetComponent<ParticleSystem>();
	}
	
	// Update is called once per frame
	void Update () {
		if(ps)
        {
            if(!ps.IsAlive())
            {
                Destroy(gameObject);
            }
        }
	}
}