Error exists for mouse position in StageViewer & MapViewer. <img width="521" height="160" alt="Image" src="https://github.com/user-attachments/assets/f590c6d2-3d3c-4104-b378-50e0756a7db0" /> <img width="476" height="439" alt="Image" src="https://github.com/user-attachments/assets/edde2d83-46b1-4b74-b966-0ac399b6b59c" />
