When I go to the routes screen, it still has the green banner with “NEW” on it. It still saves progress, but it’s still there. Also, whenever I spawn a train, when I sort it in “Recently played” it just goes by alphabetical order. Is this a bug or not?
That's a long lasting bug which also appeared in previous versions of the game. Luckily it's not game breaking.
That "NEW" banner really annoys me. The only route that can be considered new is the Riviera Line. All the others I own I've had for ages.