diff --git a/backend/main.py b/backend/main.py
index 164ff54..4bcd9ba 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -406,7 +406,7 @@ async def serve_media(path: str, request: _Request):
         raise _HE(404, "Nicht gefunden.")
     return _media_response(filepath)
 
-APP_VER = "917"  # muss mit APP_VER in app.js übereinstimmen
+APP_VER = "918"  # muss mit APP_VER in app.js übereinstimmen
 
 @app.get("/.well-known/assetlinks.json")
 async def assetlinks():
diff --git a/backend/static/index.html b/backend/static/index.html
index d411c33..0e13659 100644
--- a/backend/static/index.html
+++ b/backend/static/index.html
@@ -599,10 +599,10 @@
 <div id="modal-container"></div>
 
 <!-- JS: Reihenfolge ist wichtig — erst Basis, dann Features -->
-<script src="/js/api.js?v=917"></script>
-<script src="/js/ui.js?v=917"></script>
-<script src="/js/app.js?v=917"></script>
-<script src="/js/worlds.js?v=917"></script>
+<script src="/js/api.js?v=918"></script>
+<script src="/js/ui.js?v=918"></script>
+<script src="/js/app.js?v=918"></script>
+<script src="/js/worlds.js?v=918"></script>
 
 <!-- Feature-Seiten werden lazy geladen -->
 
diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index fc9d1de..c6d2189 100644
--- a/backend/static/js/app.js
+++ b/backend/static/js/app.js
@@ -3,7 +3,7 @@
    Router, State-Management, Navigation, Initialisierung.
    ============================================================ */
 
-const APP_VER     = '917'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER     = '918'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 const APP_VERSION = '1.5.1'; // ← semantische Version, wird bei make release gesetzt
 const IS_STAGING  = location.hostname === 'staging.banyaro.app';
 // Cache-Bust-Parameter nach Update-Reload sofort entfernen
diff --git a/backend/static/js/worlds.js b/backend/static/js/worlds.js
index c95416c..0c3c15d 100644
--- a/backend/static/js/worlds.js
+++ b/backend/static/js/worlds.js
@@ -569,24 +569,38 @@ window.Worlds = (() => {
   // _cfgCache: wird beim Init aus DB geladen, Fallback localStorage → Default
   let _cfgCache = null;
 
+  function _mergeDefaults(cfg) {
+    // Neue Default-Chips die noch nicht in der gespeicherten Config sind → anhängen
+    const result = JSON.parse(JSON.stringify(cfg));
+    for (const world of ['jetzt', 'hund', 'welt']) {
+      const def   = _DEFAULT_CONFIG[world] || [];
+      const saved = result[world] || [];
+      for (const page of def) {
+        if (!saved.includes(page)) saved.push(page);
+      }
+      result[world] = saved;
+    }
+    return result;
+  }
+
   async function _loadConfigFromServer() {
     try {
       const res = await API.get('/profile/world-config');
       if (res?.config) {
-        _cfgCache = res.config;
+        _cfgCache = _mergeDefaults(res.config);
         try { localStorage.setItem('world_chips', JSON.stringify(_cfgCache)); } catch {}
         return;
       }
       // Noch nichts in DB: lokale Config hochladen (einmalige Migration)
       const local = (() => { try { return JSON.parse(localStorage.getItem('world_chips') || 'null'); } catch { return null; } })();
       if (local) {
-        _cfgCache = local;
-        API.put('/profile/world-config', { config: local }).catch(() => {});
+        _cfgCache = _mergeDefaults(local);
+        API.put('/profile/world-config', { config: _cfgCache }).catch(() => {});
         return;
       }
     } catch {}
     // Fallback: localStorage → Default
-    try { _cfgCache = JSON.parse(localStorage.getItem('world_chips') || 'null') || _DEFAULT_CONFIG; }
+    try { _cfgCache = _mergeDefaults(JSON.parse(localStorage.getItem('world_chips') || 'null') || _DEFAULT_CONFIG); }
     catch { _cfgCache = _DEFAULT_CONFIG; }
   }
 
diff --git a/backend/static/sw.js b/backend/static/sw.js
index 91b4097..e5fe3f5 100644
--- a/backend/static/sw.js
+++ b/backend/static/sw.js
@@ -3,7 +3,7 @@
    Offline-Cache + Push Notifications + Tile-Cache
    ============================================================ */
 
-const CACHE_VERSION = 'by-v917';
+const CACHE_VERSION = 'by-v918';
 const CACHE_STATIC  = `${CACHE_VERSION}-static`;
 const CACHE_TILES   = 'ban-yaro-tiles-v1';  // bleibt über SW-Updates erhalten
 const CACHE_API     = 'ban-yaro-api-v1';    // API-Response-Cache