diff --git a/public/react/src/modules/page/MainContentContainer.js b/public/react/src/modules/page/MainContentContainer.js
index 3dc3d07d4..a51f00902 100644
--- a/public/react/src/modules/page/MainContentContainer.js
+++ b/public/react/src/modules/page/MainContentContainer.js
@@ -224,13 +224,15 @@ class MainContentContainer extends Component {
     }
 
 	componentDidUpdate(prevProps, prevState, snapshot) {
-        const { game  } = this.props
+        const { game, challenge  } = this.props
         
 		if (game && prevProps.game 
 				&& prevProps.game.identifier !== game.identifier) {   
 			// 切换关卡时，停止轮训
 			this.oldGameIdentifier = prevProps.game.identifier;
 			this.doFileUpdateRequestOnCodeMirrorBlur(prevProps)
+		} else if (challenge && (challenge.pathIndex || prevProps.challenge.pathIndex) && challenge.pathIndex != prevProps.challenge.pathIndex) {
+			this.doFileUpdateRequestOnCodeMirrorBlur(prevProps)
 		}
         
     }