Game ID: 223273. Trying to build out of UG1 during OR1.1. It is not possible to build on F13 or H11 - an error is raised: <img width="949" height="43" alt="Image" src="https://github.com/user-attachments/assets/51036766-24aa-4ba7-84b6-805ff51b2c3b" /> Note that SD2 has already built from Graz. Link to game: [https://18xx.games/game/223273](https://18xx.games/game/223273) Last action before this was 52. Created a Hotseat game: [https://gist.github.com/alexarnon/987d3650844a5bd5bf996e1edb4e28fb](https://gist.github.com/alexarnon/987d3650844a5bd5bf996e1edb4e28fb) **How to Reproduce the Bug?** Build from UG1. Presence of adjacent track might be a factor. Here is the state in the above game: <img width="315" height="320" alt="Image" src="https://github.com/user-attachments/assets/432dbce5-ad52-44c4-9471-3d4dac621785" /> Both F13 and H11 are not buildable (above error raised, then reset). **Which Browser / Platform?** Found on Firefox.