1.7G的模型导入出现很多破损，同样模型在unity中显示正常

<img width="660" height="373" alt="Image" src="https://github.com/user-attachments/assets/573875ff-d243-47fe-9ba1-c8c9cbc79651" />
上面是ue,下面是unity

<img width="865" height="713" alt="Image" src="https://github.com/user-attachments/assets/27a3f6f8-d700-4637-bb6d-5b6de8d6dbaf" />