Hi. I had the same issue yesterday after the playstation update. Just go into library, scroll down to your train sim game, click on it and re download your routes even if it says they are installed and your routes should come back.
@ ive tried that already it says ive purchased southeastern but no cjon pass and sprit of steam and kassel wurzug but none of them are there should i tag JD?
Another solution given on another post is if you have an external hard drive. Do you have an external hard drive?
Hello Train sim world, thank you for posting, This looks like an issue with Sony's update 10.00 and according to Reddit it is affecting games beyond just TSW3: https://www.reddit.com/r/PS4/comments/x81huk/version_1000_is_out/ It looks like, to solve it (quoting someone from the thread) "I turned off extended storage and turned it back on. That fixed it." I Hope this works for you and anyone else having issues.