PS4 Linke Rheinstrecke: Mainz-koblenz Not Appearing In Route List On Ps4 Despite Owning And Installing

I purchased the aforementioned route (along with Niddertalbahn) & only Niddertalbahn has shown up in my route list?

I tried to go delete an old route or 2 to see if maybe the dumb PS5 64GB limit has crept onto PS4 but I am unable to find out how to do this!

Any help please?

 

Had the same problem. I dunno which of these steps are necessary in what order, but I first restarted my PS4, then reset my internet connection and after that re-downloaded the route.
The router showed up after that in TSW