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client/src/pages/TutorialTasks.tsx

@@ -385,7 +385,13 @@ const TutorialTasks: React.FC = () => {
     // Wait for actual content to load before ending animation
     try {
       // Fetch new week's data with the updated selectedWeek
-      const response = await api.get(`/api/search/tutorial-tasks/${week}`);
+      let response;
+      try {
+        response = await api.get(`/api/search/tutorial-tasks/${week}`);
+      } catch (e) {
+        // Soft retry once on transient errors
+        response = await api.get(`/api/search/tutorial-tasks/${week}`);
+      }
       
       if (response.data) {
         const tasks = response.data;
@@ -523,7 +529,12 @@ const TutorialTasks: React.FC = () => {
         return;
       }
 
-      const response = await api.get(`/api/search/tutorial-tasks/${selectedWeek}`);
+      let response;
+      try {
+        response = await api.get(`/api/search/tutorial-tasks/${selectedWeek}`);
+      } catch (e) {
+        response = await api.get(`/api/search/tutorial-tasks/${selectedWeek}`);
+      }
 
       if (response.data) {
         const tasks = response.data;

client/src/services/api.ts

@@ -87,6 +87,15 @@ api.interceptors.response.use(
           resolve(api.request(error.config));
         }, 2000); // Wait 2 seconds before retry
       });
+    } else if (error.response?.status === 503) {
+      // Service unavailable - quick exponential backoff retry (max 2 tries)
+      const cfg: any = error.config || {};
+      cfg.__retryCount = cfg.__retryCount || 0;
+      if (cfg.__retryCount < 2) {
+        cfg.__retryCount += 1;
+        const delay = 500 * Math.pow(2, cfg.__retryCount); // 1000ms, 2000ms
+        return new Promise(resolve => setTimeout(() => resolve(api.request(cfg)), delay));
+      }
     } else if (error.response?.status === 500) {
       console.error('Server error:', error.response.data);
     } else if (error.code === 'ECONNABORTED') {