viewer is displaying abnormally with 'lingering' shadows from expert-type agents.

Issue encountered during the use of the viewer: The shadows of lingering agents occasionally appear randomly. This occurs even when I have disabled the object parsing feature and only displayed the map.

<img width="113" height="165" alt="Image" src="https://github.com/user-attachments/assets/14d33198-a328-4047-86f0-881bd4b0c587" />