diff --git a/frontend/src/business/components/track/common/NodeTree.vue b/frontend/src/business/components/track/common/NodeTree.vue
index 16a6278220..4eeadc0b2f 100644
--- a/frontend/src/business/components/track/common/NodeTree.vue
+++ b/frontend/src/business/components/track/common/NodeTree.vue
@@ -210,22 +210,28 @@ export default {
         if (node.caseNum) {
           node.caseNum++;
         }
-      });
+      }, true);
+      if (this.extendTreeNodes[0].id === 'root') {
+        this.extendTreeNodes[0].caseNum++;
+      }
     },
     decrease(id) {
       this.traverse(id, node => {
         if (node.caseNum) {
           node.caseNum--;
         }
-      });
-    },
-    traverse(id, callback) {
-      for (let i = 0; i < this.treeNodes.length; i++) {
-        let rootNode = this.treeNodes[i];
-        this._traverse(rootNode, id, callback);
+      }, true);
+      if (this.extendTreeNodes[0].id === 'root') {
+        this.extendTreeNodes[0].caseNum--;
       }
     },
-    _traverse(rootNode, id, callback) {
+    traverse(id, callback, isParentCallback) {
+      for (let i = 0; i < this.treeNodes.length; i++) {
+        let rootNode = this.treeNodes[i];
+        this._traverse(rootNode, id, callback, isParentCallback);
+      }
+    },
+    _traverse(rootNode, id, callback, isParentCallback) {
       if (rootNode.id === id) {
         if (callback) {
           callback(rootNode);
@@ -235,8 +241,11 @@ export default {
       if (!rootNode.children) {return false;}
       for (let i = 0; i < rootNode.children.length; i++) {
         let children = rootNode.children[i];
-        let result = this._traverse(children);
+        let result = this._traverse(children, id, callback, isParentCallback);
         if (result === true) {
+          if (isParentCallback) {
+            callback(rootNode);
+          }
           return result;
         }
       }