Update app.py

app.py

@@ -1834,6 +1834,8 @@ with gr.Blocks(title="Email Investigator — Per-bucket-k + Label Dedup + Survei
                 k = max(10, int(k_clusters or 350))
             k = int(max(2, round(k * _bucket_k_multiplier(bucket_name))))
 
+            k = min(k, n)
+
             init = None
             if use_lsa and isinstance(X_space, np.ndarray) and count_vec is not None:
                 seeds = seeded_centroids_in_lsa(
@@ -2358,4 +2360,4 @@ with gr.Blocks(title="Email Investigator — Per-bucket-k + Label Dedup + Survei
 
 if __name__ == "__main__":
     # Disable SSR to avoid handler arity warnings under server-side rendering
-    demo.launch(ssr_mode=False)
+    demo.launch(ssr_mode=False)