I can't seem to line any switches from the map. The "A" indicator will pop up but nothing happens? Anyone else have this issue? Specifically TSW2 on the sand patch grade
You need to access the map from within the route, not from the pause menu, to be able to change switches. You cannot change the switches if you access the map via the pause menu.
As far as I know they do change but only after you resume the game. The "command" only registers then.
But as you can’t see the change happen on the map it’s best not to do it that way. Best to go into the map from within the running game so you can see the line match up with where you want to go.