I see what you mean, I just opened a (non default) standart scenario and have roam at there.
RailWorksProc2 2012-08-09 11-00-28-41.jpg
Looking from far it seems is missing a part of siding diverging from Track2
RailWorksProc2 2012-08-09 11-01-00-95.jpg
but if you look closer the tracks are there, though in brighter gray.
RailWorksProc2 2012-08-09 11-01-41-35.jpg
BTW the moirè effect in the new version of BS-B route since the update is really worse ever, what a pitty.
For the re-installing mods problem after any verifying (it's annoying indeed, especially because 99% of verifying is for no avail, as I've been seeing on Forums), you might see this:
Reinstall RW3 Mods with 2-Clickz (Basic)
viewtopic.php?f=6&t=5383&p=58783Doc.
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Who doesn't have dog, hunts with cat.