I have several times had routes that would not show on Quick Drive and I followed advice to clear the cache...which worked fine until yesterday evening. Still the same issue today but I have found the route when selecting workshop routes... strange. I have selected a diesel train on non electrified routes as this would show up most routes and the ones I am missing. Any help would be gratefully received.
Delete these files: SDBCache.bin SDBCache.bin.MD5 You will find them in the ...\Railworks\Content folder. Starting up TSC will take a little longer building up the cache.
I think corrupted content (routes, scenarios) can break down the cache builder / checker. My own quick drive lists were like a nuclear flask with half time, getting shorter on every startup, until I unsubscribed from Seebergbahn. The workshop downloads appear to be healthy on my new PC so I'm not sure that can be a cause of corruption... Since you mention Clear Cache, am I understanding correctly that the problem reproduces itself? I would try and remove any non-Steam content for starters, and then keep adding them back.