From 6720a3e73043a652291d491a75499fc85e86496a Mon Sep 17 00:00:00 2001
From: plum <40649341+plum-k@users.noreply.github.com>
Date: Fri, 10 Apr 2026 02:09:08 +0800
Subject: [PATCH] fix(sdk): capture loader ref in unpackGroup to prevent race
 condition on done() cleanup

---
 packages/sdk/lib/core/loader/Package.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/sdk/lib/core/loader/Package.ts b/packages/sdk/lib/core/loader/Package.ts
index 37f0bc9..89ffcf9 100644
--- a/packages/sdk/lib/core/loader/Package.ts
+++ b/packages/sdk/lib/core/loader/Package.ts
@@ -1337,6 +1337,9 @@ export class Package {
         //const db = window.VIEWPORT.modules["db"];
         //const dbTable = `${useProjectState.getState().sceneId}-${useProjectState.getState().info.id}`;
 
+        // 在调用时捕获 loader 引用，防止 done() 清除 this.loader 后重试路径报错
+        const loader = this.loader;
+
         // map 存储 json 解析完成后执行的 function; key 为 uuid
         const funcMap = new Map<string, Function>();
 
@@ -1433,7 +1436,8 @@ export class Package {
 
         const parse = (json) => {
             if (check(json.object, json)) {
-                this.loader.parse(json, (group) => {
+                if (!loader) return;
+                loader.parse(json, (group) => {
                     const bones: Bone[] = [];
                     group.getObjectsByProperty("type", "Bone", bones);
                     if (bones.length > 0) {