diff --git a/backend/src/tools/media/routes.js b/backend/src/tools/media/routes.js
index 14753f1..e674982 100644
--- a/backend/src/tools/media/routes.js
+++ b/backend/src/tools/media/routes.js
@@ -246,26 +246,28 @@ router.get('/movie/:id', authenticate, async (req, res) => {
 });
 
 // POST /api/tools/media/xrel-check – Check ob deutsche Releases existieren
-// Nimmt max 5 Filme pro Request (Frontend schickt mehrere kleine Batches)
+// Filme EINZELN sequenziell prüfen um xREL Rate-Limit zu respektieren
 router.post('/xrel-check', authenticate, async (req, res) => {
   const movies = (req.body.movies || []).slice(0, 5);
   if (!movies.length) return res.json({});
 
   const result = {};
-  await Promise.all(movies.map(async m => {
+  for (const m of movies) {
     try {
       const extInfoId = await findExtInfoId(m.title, m.original_title);
-      if (!extInfoId) { result[m.id] = false; return; }
+      if (!extInfoId) { result[m.id] = false; continue; }
       // P2P zuerst – main_lang ist zuverlässig
       const p2p = await xrelFetch('/p2p/releases.json', { ext_info_id: extInfoId, per_page: 25 }, 8000);
-      if ((p2p.list || []).some(r => r.main_lang === 'german')) { result[m.id] = true; return; }
+      if ((p2p.list || []).some(r => r.main_lang === 'german')) { result[m.id] = true; continue; }
       // Scene als Fallback
       const scene = await xrelFetch('/release/ext_info.json', { id: extInfoId, per_page: 25 }, 8000);
       result[m.id] = (scene.list || []).some(r => /german|deutsch/i.test(r.dirname || ''));
     } catch (_) {
       result[m.id] = false;
     }
-  }));
+    // Kurze Pause zwischen Filmen – xREL Rate-Limit
+    await new Promise(r => setTimeout(r, 400));
+  }
   res.json(result);
 });
 
diff --git a/frontend/src/tools/media.jsx b/frontend/src/tools/media.jsx
index 5cb1166..02e2e88 100644
--- a/frontend/src/tools/media.jsx
+++ b/frontend/src/tools/media.jsx
@@ -271,10 +271,10 @@ function KinoGrid({ onOpenModal }) {
     let cancelled = false;
     const moviesMeta = movies.map(m => ({ id: m.id, title: m.title, original_title: m.original_title }));
     (async () => {
-      for (let i = 0; i < moviesMeta.length; i += 5) {
+      for (let i = 0; i < moviesMeta.length; i += 1) {
         if (cancelled) break;
         try {
-          const chunk = moviesMeta.slice(i, i + 5);
+          const chunk = moviesMeta.slice(i, i + 1);
           const result = await api('/tools/media/xrel-check', { method:'POST', body:{ movies: chunk } });
           if (cancelled) break;
           const hits = Object.entries(result).filter(([,v]) => v).map(([k]) => Number(k));
@@ -340,10 +340,10 @@ function DemnächstGrid({ onOpenModal }) {
     let cancelled = false;
     const moviesMeta = allMovies.map(m => ({ id: m.id, title: m.title, original_title: m.original_title }));
     (async () => {
-      for (let i = 0; i < moviesMeta.length; i += 5) {
+      for (let i = 0; i < moviesMeta.length; i += 1) {
         if (cancelled) break;
         try {
-          const chunk = moviesMeta.slice(i, i + 5);
+          const chunk = moviesMeta.slice(i, i + 1);
           const result = await api('/tools/media/xrel-check', { method:'POST', body:{ movies: chunk } });
           if (cancelled) break;
           const hits = Object.entries(result).filter(([,v]) => v).map(([k]) => Number(k));