I had made a number of scenarios for the Great Western Mainline when for some unknown reason, none of the components were showing up on the Quick Drive menu.

I tried all of the usual fixes of removing the scenario cache, reinstalling the Great Western Route, but nothing worked.

By a series of deductions, I figured out it was my QD Westbound scenarios that won't working.

• The fix is to edit the non-working scenario and make some quick changes to the route, save it, then change the weather and time to force the system to re-read the scenario in the Quick Drive menu and it should work again (I changed the name of the player train spawn points).