diff --git a/client/src/components/Layout.tsx b/client/src/components/Layout.tsx
index eff853e..e900af4 100644
--- a/client/src/components/Layout.tsx
+++ b/client/src/components/Layout.tsx
@@ -1,4 +1,4 @@
-import { ReactNode, useState, createContext, useContext } from "react";
+import { ReactNode, useState, createContext, useContext, useEffect } from "react";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Button } from "@/components/ui/button";
@@ -18,6 +18,7 @@ interface StoreContextType {
   setSidebarCollapsed: (collapsed: boolean) => void;
   mobileMenuOpen: boolean;
   setMobileMenuOpen: (open: boolean) => void;
+  storeInitialized: boolean;
 }
 
 const StoreContext = createContext<StoreContextType | undefined>(undefined);
@@ -46,6 +47,8 @@ export default function Layout({ children }: LayoutProps) {
     console.log('🏪 Layout - Restoring selectedStoreId from localStorage:', { saved, restoredId });
     return restoredId;
   });
+  
+  const [storeInitialized, setStoreInitialized] = useState(false);
 
   const [sidebarCollapsed, setSidebarCollapsed] = useState<boolean>(() => {
     // Restaurer l'état de la sidebar depuis localStorage, mais forcer collapsed sur mobile
@@ -60,12 +63,34 @@ export default function Layout({ children }: LayoutProps) {
     enabled: !!user,
   });
 
+  // Effet pour marquer l'initialisation comme terminée
+  useEffect(() => {
+    if (user && stores.length > 0) {
+      // Pour les admins, vérifier que selectedStoreId est cohérent avec les stores disponibles
+      if (user.role === 'admin' && selectedStoreId) {
+        const storeExists = stores.find(store => store.id === selectedStoreId);
+        if (!storeExists) {
+          console.log('🏪 Selected store not found in available stores, clearing selection');
+          setSelectedStoreId(null);
+          localStorage.removeItem('selectedStoreId');
+        }
+      }
+      
+      console.log('🏪 Store initialization complete:', { 
+        user: user.role, 
+        selectedStoreId, 
+        storesCount: stores.length 
+      });
+      setStoreInitialized(true);
+    }
+  }, [user, stores, selectedStoreId]);
+
   const handleLogout = () => {
     window.location.href = "/api/logout";
   };
 
   return (
-    <StoreContext.Provider value={{ selectedStoreId, setSelectedStoreId, stores, sidebarCollapsed, setSidebarCollapsed, mobileMenuOpen, setMobileMenuOpen }}>
+    <StoreContext.Provider value={{ selectedStoreId, setSelectedStoreId, stores, sidebarCollapsed, setSidebarCollapsed, mobileMenuOpen, setMobileMenuOpen, storeInitialized }}>
       <div className="layout-container flex bg-gray-50">
         {/* Mobile overlay */}
         {isMobile && mobileMenuOpen && (
diff --git a/client/src/pages/Tasks.tsx b/client/src/pages/Tasks.tsx
index ca26dd2..955fdac 100644
--- a/client/src/pages/Tasks.tsx
+++ b/client/src/pages/Tasks.tsx
@@ -39,7 +39,7 @@ type TaskWithRelations = Task & {
 
 export default function Tasks() {
   const { user } = useAuthUnified();
-  const { selectedStoreId } = useStore();
+  const { selectedStoreId, storeInitialized } = useStore();
   const { toast } = useToast();
   const queryClient = useQueryClient();
 
@@ -57,14 +57,20 @@ export default function Tasks() {
   const [selectedTask, setSelectedTask] = useState<TaskWithRelations | null>(null);
   const [taskToDelete, setTaskToDelete] = useState<TaskWithRelations | null>(null);
 
-  // Fetch tasks
+  // Fetch tasks - attendre que l'initialisation des stores soit terminée pour les admins
   const { data: tasks = [], isLoading } = useQuery({
     queryKey: ["/api/tasks", selectedStoreId],
     queryFn: () => {
       const params = new URLSearchParams();
-      if (selectedStoreId) {
+      if (selectedStoreId && user?.role === 'admin') {
         params.append('storeId', selectedStoreId.toString());
       }
+      console.log('📋 TASKS QUERY - Fetching with params:', { 
+        selectedStoreId, 
+        userRole: user?.role,
+        storeInitialized,
+        url: `/api/tasks?${params.toString()}`
+      });
       return fetch(`/api/tasks?${params.toString()}`, {
         credentials: 'include'
       }).then(res => {
@@ -74,7 +80,7 @@ export default function Tasks() {
         return res.json();
       });
     },
-    enabled: !!user,
+    enabled: !!user && (user.role !== 'admin' || storeInitialized),
   });
 
   // Fetch users for task assignment - seulement pour admin/manager/directeur
diff --git a/server/routes.ts b/server/routes.ts
index 4bf8ca1..ecc8fb0 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -1265,11 +1265,19 @@ export async function registerRoutes(app: Express): Promise<Server> {
         userRole: user.role, 
         userId: user.id,
         requestedStoreId: storeId,
-        userGroups: user.role !== 'admin' ? user.userGroups.map(ug => ug.groupId) : 'all'
+        userGroups: user.role !== 'admin' ? user.userGroups.map(ug => ug.groupId) : 'all',
+        timestamp: new Date().toISOString()
       });
       
       const tasks = await storage.getTasks(groupIds);
-      console.log('📋 Tasks returned:', tasks.length, 'items for user:', user.id);
+      console.log('📋 Tasks returned:', {
+        count: tasks.length,
+        userId: user.id,
+        userRole: user.role,
+        requestedStoreId: storeId,
+        groupIds,
+        taskGroups: tasks.map(t => ({ id: t.id, title: t.title, groupId: t.groupId })).slice(0, 3)
+      });
       res.json(tasks);
     } catch (error) {
       console.error("Error fetching tasks:", error);