### Contact Information _No response_ ### MaxKB Version v2.2.0 ### Problem Description 通过拖拽添加节点,节点不显示,应用无法退出 ### Steps to Reproduce 1、点击右上角添加组件 2、拖拽组件到画布中,组件不显示 <img width="1634" height="832" alt="Image" src="https://github.com/user-attachments/assets/cca81a2f-c296-4649-8771-f8702622b005" /> <img width="1943" height="846" alt="Image" src="https://github.com/user-attachments/assets/8a10fb9a-3a91-414b-9863-7dcf4b1ad6e0" /> 3、也导致无法退出 <img width="1945" height="839" alt="Image" src="https://github.com/user-attachments/assets/d41ad560-5ba4-443a-8411-a5c9a4b32339" /> ### The expected correct result _No response_ ### Related log output ```shell ``` ### Additional Information _No response_