It seems that there might be a technical issue with the display of maps in the "ITN Converter" program on Windows. The app is working and plotting routes, but the maps are not being displayed. This could be due to various reasons such as a compatibility problem, missing map data, or a glitch in the software. It is recommended to check for updates, ensure proper installation, and seek technical support from the program's developer or community forums for further assistance in resolving the issue.