diff --git a/funasr_server.py b/funasr_server.py
index 78b1863..11640b1 100644
--- a/funasr_server.py
+++ b/funasr_server.py
@@ -55,13 +55,13 @@ def get_log_path():
 @contextlib.contextmanager
 def suppress_stdout():
     """上下文管理器：临时重定向stdout到devnull，避免FunASR库的非JSON输出干扰IPC通信"""
-    old_stdout = sys.stdout
     devnull = open(os.devnull, "w")
     try:
         sys.stdout = devnull
         yield
     finally:
-        sys.stdout = old_stdout
+        # 使用 sys.__stdout__ 恢复原始stdout，避免多线程race condition
+        sys.stdout = sys.__stdout__
         devnull.close()
 
 
diff --git a/src/helpers/funasrManager.js b/src/helpers/funasrManager.js
index e964085..d21eb96 100644
--- a/src/helpers/funasrManager.js
+++ b/src/helpers/funasrManager.js
@@ -1231,7 +1231,7 @@ class FunASRManager {
           installed: installStatus.installed,
           models_downloaded: modelStatus.models_downloaded,
           missing_models: modelStatus.missing_models || [],
-          initializing: this.initializationPromise !== null
+          initializing: this.initializationPromise !== null || !this.isInitialized
         };
       }
     } catch (error) {
diff --git a/src/hooks/useModelStatus.js b/src/hooks/useModelStatus.js
index 728a8fc..b7afbd3 100644
--- a/src/hooks/useModelStatus.js
+++ b/src/hooks/useModelStatus.js
@@ -105,8 +105,8 @@ export const useModelStatus = () => {
           progress: 100,
           stage: 'ready'
         }));
-      } else if (serverStatus.initializing) {
-        // 模型已下载，正在加载
+      } else if (serverStatus.initializing || serverStatus.models_downloaded) {
+        // 模型已下载，正在加载（包括启动竞争窗口期 initializing 尚未设置的情况）
         setModelStatus(prev => ({
           ...prev,
           isLoading: true,
@@ -118,12 +118,12 @@ export const useModelStatus = () => {
           stage: 'loading'
         }));
       } else {
-        // 模型已下载但服务器未就绪
+        // 模型未下载或服务器真实失败
         setModelStatus(prev => ({
           ...prev,
           isLoading: false,
           isReady: false,
-          modelsDownloaded: true,
+          modelsDownloaded: false,
           missingModels: [],
           error: serverStatus.error || '服务器未就绪',
           progress: 0,