Don't know how I missed this, when I overhauled TM routes in the Carson City area (including deleting one confirmed to be decommissioned) after a field check last year.
This doesn't quite affect the current NMP hunt, since NV 518's US50/US395 point (which is now on US395BusCar, with both the US 50 and US 395 mainlines relocated to the new I-580) and the other JacWay point are too far away from any other point to count as a "near-miss". Still, out of synch with any other TM routes.
I'll take care of this later, when I'm less busy.