diff --git a/pyproject.toml b/pyproject.toml
index 156ee02..b6cda27 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "comfyui_lg_groupexecutor"
 description = "A ComfyUI extension for controlling and managing node group execution flow. Features include single/multiple group execution, delay control, signal chaining, and execution list repetition processing."
-version = "1.2.6"
+version = "1.2.7"
 dependencies = [""]
 
 [project.urls]
diff --git a/web/queue_utils.js b/web/queue_utils.js
index 5ced9cd..02895d1 100644
--- a/web/queue_utils.js
+++ b/web/queue_utils.js
@@ -118,6 +118,10 @@ class QueueManager {
   recursiveAddNodes(nodeId, oldOutput, newOutput) {
     let currentId = nodeId;
     let currentNode = oldOutput[currentId];
+    if (!currentNode) {
+      console.warn(`[QueueManager] 节点 ${currentId} 在输出中不存在`);
+      return newOutput;
+    }
     if (newOutput[currentId] == null) {
       newOutput[currentId] = currentNode;
       for (const inputValue of Object.values(currentNode.inputs || [])) {