diff --git a/Assets/Scripts/GameManager.cs b/Assets/Scripts/GameManager.cs
index 105a8f9..9dcccee 100644
--- a/Assets/Scripts/GameManager.cs
+++ b/Assets/Scripts/GameManager.cs
@@ -281,8 +281,11 @@ public void StartGame()
     private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
     {
         Debug.Log("begin OnRoomUpdate");
+        GameState lastState = (GameState)myRoom.currentState;
+
         try
         {
+
             if (e?.Snapshot?.GetRawJsonValue() != null)
             {
                 string JSON = e.Snapshot.GetRawJsonValue();
@@ -299,6 +302,33 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
             Debug.Log("myroom is null");
             return;
         }
+
+        if(myRoom.currentState != (int)lastState)
+        {
+            OnNewGameState();
+        }
+        else
+        {
+            //call this every time we are on this state
+            switch (myRoom.currentState)
+            {
+                case (int)GameState.WaitingForOtherPlayersToJoin:
+                    {
+                        CheckIfIAmTheFirst(myRoom.GetPlayerList());
+                        UpdateDisplayedListUser(myRoom.GetPlayerList());
+                        break;
+                    }
+                default:
+                    break;
+            }
+        }
+    }
+
+    /// <summary>
+    /// Call this when Game state change
+    /// </summary>
+    private void OnNewGameState()
+    {
         switch (myRoom.currentState)
         {
             case (int)GameState.EnteringName:
@@ -309,14 +339,6 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
                         HomeConnection.SetActive(true);
                     }
 
-                    break;
-                }
-            case (int)GameState.WaitingForOtherPlayersToJoin:
-                {
-
-                    CheckIfIAmTheFirst(myRoom.GetPlayerList());
-                    UpdateDisplayedListUser(myRoom.GetPlayerList());
-
                     break;
                 }
             case (int)GameState.Explanation:
@@ -328,7 +350,6 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
                     WaitingRoom.SetActive(false);
                     BeforeStart.SetActive(true);
                     endOfViewDate = DateTime.Now.AddSeconds(4);
-
                     break;
                 }
             case (int)GameState.MakeProposition:
@@ -338,9 +359,7 @@ private void OnRoomUpdate(object sender, ValueChangedEventArgs e)
                         BeforeStart.SetActive(false);
                         TakePicture.SetActive(true);
                         endOfViewDate = DateTime.Now.AddSeconds(60);
-
                     }
-
                     break;
                 }
             case (int)GameState.PropositionsSent:
@@ -477,7 +496,10 @@ public void onClickNewPlayers()
 
     private void OnCurrentQuestionChanged(object sender, ValueChangedEventArgs onlineValue)
     {
-        Question q = myRoom.questions[onlineValue.Snapshot.Value.ConvertTo<int>()];
+        int questionId = onlineValue.Snapshot.Value.ConvertTo<int>();
+        Debug.Log($"new question ! Q{(onlineValue.Snapshot.Value.ConvertTo<int>())}");
+
+        Question q = myRoom.questions[questionId];
 
         if (WaitingOtherPlayers.activeInHierarchy)
         {
diff --git a/Assets/Scripts/PropositionHandler.cs b/Assets/Scripts/PropositionHandler.cs
index 2495f70..5542af2 100644
--- a/Assets/Scripts/PropositionHandler.cs
+++ b/Assets/Scripts/PropositionHandler.cs
@@ -16,8 +16,11 @@ public class PropositionHandler : MonoBehaviour
 
     public void ShowQuestion(Question currentQuestion)
     {
+
         List<Proposition> props = currentQuestion.propositions.Values.ToList();
-        promptLabel.text = prompts.GetPromptById(currentQuestion.promptId).en;
+        string enPrompt = prompts.GetPromptById(currentQuestion.promptId).en;
+        promptLabel.text = enPrompt;
+        Debug.Log($"Showing Question ({currentQuestion.index}) : {enPrompt}");
         for (int i = 0; i < 2; i++)
         {
             int index = i; // Capture la valeur de i pour cette itération
diff --git a/Assets/Scripts/QuestionHandler.cs b/Assets/Scripts/QuestionHandler.cs
index 5ed7fbe..e141cd3 100644
--- a/Assets/Scripts/QuestionHandler.cs
+++ b/Assets/Scripts/QuestionHandler.cs
@@ -2,13 +2,16 @@
 using System.Linq;
 using TMPro;
 using UnityEngine;
+using UnityEngine.UI;
 
 public class QuestionHandler : MonoBehaviour
 {
     public GameObject managers;
-    private GameManager gameManager;
+    public Button submitButton;
     public TextMeshProUGUI explainText;
     public PromptList promptList;
+
+    private GameManager gameManager;
     private List<Question> player2questions;
     private int currentQuestion = 0;
 
@@ -42,34 +45,36 @@ int GetPropRef(Player player)
 
     public void OnSubmitButton()
     {
+        submitButton.interactable = false;
+        submitButton.GetComponent<TextMeshProUGUI>().text = "Uploading...";
+
         managers.GetComponent<StorageManager>().UploadPhoto(
             gameManager.myRoom.code,
             gameManager.currentPlayer.id,
             currentQuestion,
-            GetPropRef(gameManager.currentPlayer));
+            GetPropRef(gameManager.currentPlayer), succeed =>
+            {
+                if(!succeed)
+                {
+                    Debug.LogError("Photo upload failed. please do something", this);
+                    return;
+                }
 
-        if (currentQuestion == 1)
-        {
-            gameManager.myRoom.currentState = (int)GameState.PropositionsSent;
-            gameManager.WaitForPlayers();
-            return;
-        }
-        else
-        {
-            currentQuestion++;
-            Redraw(currentQuestion);
-        }
-    }
-
-    // Start is called before the first frame update
-    void Start()
-    {
+                if (currentQuestion == 1)
+                {
+                    gameManager.myRoom.currentState = (int)GameState.PropositionsSent;
+                    gameManager.WaitForPlayers();
+                    return;
+                }
+                else
+                {
+                    submitButton.interactable = true;
+                    submitButton.GetComponent<TextMeshProUGUI>().text = "Submit";
+                    currentQuestion++;
+                    Redraw(currentQuestion);
+                }
+            });
 
     }
 
-    // Update is called once per frame
-    void Update()
-    {
-
-    }
 }
diff --git a/Assets/Scripts/StorageManager.cs b/Assets/Scripts/StorageManager.cs
index fb02a5e..9f5c8d2 100644
--- a/Assets/Scripts/StorageManager.cs
+++ b/Assets/Scripts/StorageManager.cs
@@ -39,7 +39,7 @@ void Update()
 
     }
 
-    public void UploadPhoto(string roomCode, string playerId, int question, int proposition)
+    public void UploadPhoto(string roomCode, string playerId, int question, int proposition, Action<bool> callback_OnPhotoUploaded)
     {
         Texture2D photo = cameraManager.GetPhoto();
         byte[] photoBytes = ImageConversion.EncodeToJPG(photo);
@@ -53,11 +53,13 @@ public void UploadPhoto(string roomCode, string playerId, int question, int prop
         {
             if (task.IsFaulted || task.IsCanceled)
             {
+                callback_OnPhotoUploaded?.Invoke(false);
                 Debug.LogException(task.Exception);
                 // Uh-oh, an error occurred!
             }
             else
             {
+                callback_OnPhotoUploaded?.Invoke(true);
                 realtimeDB
                     .Child("rooms")
                     .Child(roomCode)