RNG Generating multiple numbers

Questions & Answers
1

I’m fairly new to Unity and have only been dependent on online sources to help me
Lately, I have been stuck with one problem where I wanted to display a random tip on my game every 10s with a display time of 5s
I made a rng that is supposed to generate a number every 10s, but now after the first generation it goes haywire and generates multiple random numbers
I’d appreciate it if you can help thank youuuu
public GameObject T1;
public GameObject T2;
public GameObject T3;
public GameObject T4;
private int RanTip;
private GameObject CurTip;

	void Start () {
		T1.SetActive (false);
		T2.SetActive (false);
		T3.SetActive (false);
		T4.SetActive (false);
	}

	void Update () {
		InvokeRepeating ("Randomizer",10,10);
		Debug.Log ("Randomizing");
	}
	void RNG(){
		if (RanTip==0){
			CurTip = T1;
			CurTip.SetActive (true);
			StartCoroutine ("DisplayTime");
			Debug.Log ("1");
		}
		else if (RanTip==1){
			CurTip = T2;
			CurTip.SetActive (true);
			StartCoroutine ("DisplayTime");
			Debug.Log ("2");
		}
		else if (RanTip==2){
			CurTip = T3;
			CurTip.SetActive (true);
			StartCoroutine ("DisplayTime");
			Debug.Log ("3");
		}
		else if (RanTip==3){
			CurTip = T4;
			CurTip.SetActive (true);
			StartCoroutine ("DisplayTime");
			Debug.Log ("4");
		}
	}
	IEnumerator DisplayTime (){
		yield return new WaitForSecondsRealtime (5f);
		CurTip.SetActive (false);
	}
	void Randomizer (){
		RanTip = Random.Range (0,3);
		RNG ();
	}
}
2

Every frame you call invoke repeating with a 10 second delay. So after 10 seconds you’ll suddenly catch up and the method will start firing every frame. Call invoke repeating once in Start rather than Update.