diff --git a/components/pages/work-flow/media-viewer.tsx b/components/pages/work-flow/media-viewer.tsx
index df18832..445b9cd 100644
--- a/components/pages/work-flow/media-viewer.tsx
+++ b/components/pages/work-flow/media-viewer.tsx
@@ -263,7 +263,7 @@ export function MediaViewer({
   );
 
   // 渲染最终成片
-  const renderFinalVideo = () => {
+  const renderFinalVideo = (currentStep: string) => {
     // 使用真实的final数据，如果没有则使用默认值
     const finalVideo = final || {
       url: 'https://cdn.qikongjian.com/videos/1750389908_37d4fffa-8516-43a3-a423-fc0274f40e8a_text_to_video_0.mp4'
@@ -272,6 +272,7 @@ export function MediaViewer({
     return (
       <div 
         className="relative w-full h-full rounded-lg overflow-hidden"
+        key={`render-video-${currentStep}`}
         onMouseEnter={() => onControlsChange(true)}
         onMouseLeave={() => onControlsChange(false)}
       >
@@ -796,7 +797,7 @@ export function MediaViewer({
 
   // 根据当前步骤渲染对应内容
   if (Number(currentStep) === 6 || Number(currentStep) === 5.5) {
-    return renderFinalVideo();
+    return renderFinalVideo(currentStep);
   }
 
   if (Number(currentStep) > 2 && Number(currentStep) < 6) {