Steam Haupstrecke Rhein Ruhr Missing In My Library.

I was just browsing in my TSW Library ingame when I noticed that HRR was missing when i just played it yesterday. The 101 from HRR is showing up in my Library and I already deactivated every mod but somehow it is just gone. In my steam dlc register I unmarked and marked the dlc again and steam updated TSW6 but still after launching the game it was still missing.
Can someone help?

 

The route is called Hauptstrecke Rhein-Ruhr, with a hyphen between Rhein and Ruhr.

You forgot this hyphen, which is why TSW is not displaying HRR for you. In general, it is not necessary to filter using the full name; one word, in my example “Ruhr,” is enough to find a route quickly and prevent filtering problems due to missing characters or incorrect spelling.