Get hold of a copy of TS Tools and check the route for missing assets (and particularly textures). That’ll show you what’s missing. Quite often you’ll find you’ve got the missing assets or textures elsewhere and can either copy them across to where they’re needed or use TS Tools to replace the missing asset.
One stop shop for Train Simulator downloadable content, routes, scenarios, reskins, patches mods and user generated free, subscription and payware Train Sim addons.
