Unity ads just working on some selected devices.

Hey guys so I tested my unity ads with test mode on and it worked fine in my device. So I published it and turned off the test mode now the problem is that the ads doesn't show up in my device(Samsung). Then I tested in another old device I had(Lenovo) and the ads did work on this one. I tested on 2 Samsung devices and the ads didn't show up in any of the device. Please help!!

 

First of all thanks for responding
Here is the information u needed:

• I'm building the game with unity(2020.1)
• I'm using unity ads 3.4.9
• Here is my code

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.Advertisements;
5. using System;
6.  
7. public class AdsManager : MonoBehaviour, IUnityAdsListener
8. {
9.  
10.     public static AdsManager Instance;
11.  
12.     Action onRewardedAdSuccess;
13.  
14.     private void Awake()
15.     {
16.         //Instance = this;
17.         if (!Instance)
18.         {
19.             Instance = this;
20.             DontDestroyOnLoad(gameObject);
21.         }
22.         else
23.         {
24.             //Duplicate GameManager created every time the scene is loaded
25.             Destroy(gameObject);
26.             return;
27.         }
28.     }
29.  
30.     void Start()
31.     {
32.         Advertisement.Initialize("4282775");
33.         Advertisement.AddListener(this);
34.     }
35.  
36.     public void PlayAd() {
37.         if (Advertisement.IsReady("Interstitial_Android")) {
38.             Advertisement.Show("Interstitial_Android");
39.         }
40.     }
41.  
42.     public void PlayRewardedAd(Action onSuccess)
43.     {
44.         onRewardedAdSuccess = onSuccess;
45.         if (Advertisement.IsReady("Rewarded_Android")) {
46.             Advertisement.Show("Rewarded_Android");
47.         } else {
48.             //Debug.Log("RewardedVideo Not ready");
49.             GameManager.Instance.videoNotReadyPanel.SetActive(true);
50.         }
51.     }
52.  
53.     public void OnUnityAdsReady(string placementId)
54.     {
55.         //Debug.Log("ad is ready");
56.     }
57.  
58.     public void OnUnityAdsDidError(string message)
59.     {
60.         //Debug.Log("Error : " + message);
61.     }
62.  
63.     public void OnUnityAdsDidStart(string placementId)
64.     {
65.         //Debug.Log("Video Started");
66.     }
67.  
68.     public void OnUnityAdsDidFinish(string placementId, ShowResult showResult)
69.     {
70.         if(placementId == "Rewarded_Android" && showResult == ShowResult.Finished)
71.         {
72.             onRewardedAdSuccess.Invoke();
73.         }
74.     }
75. }
76.  

• I don't know how to give u the device log
• No I'm not using any mediation.
• the problem is reproducible 100% of the time
• I tested on Samsung Galaxy f41 (android 11) and the ads didn't work. Them tested in redmi S2(or Y2)(android 8.1) and Lenovo Vibe K4 note(android 6) and the ads worked on both the devices.

Here is the game link - https://play.google.com/store/apps/details?id=com.Solodevstudio.GreedyBirds

One more thing is that the game crashes in some devices at start and I believe its due to unity ads.

 

Edit*
Okay so I updated the unity ads to the latest version and now it seems to work