I have just downloaded and installed the latest version of this route. I am also getting missing marker problems for virtually every station platform from London to York. I can seem to drive anywhere North of Doncaster but nothing south of it as it says unknown errors and missing markers.
I don’t suppose there will be a reply to these issues as the original thread for this problem was started a long time ago. It’s a bit sad that the author hasn’t decided to answer the query.
Please can the author SpeedyPete i believe, please at least give us some info of any solutions to this problem.