there's a gif that illustrates the issue in the linked article. but belts, like any other entity in factorio, have their orientation set before they are placed

there's a gif that illustrates the issue in the linked article. but belts, like any other entity in factorio, have their orientation set before they are placed. so if you have an up belt and you click and drag left-to-right, you get a long line of parallel belts that don't connect. this is useful when you're trying to create a parallel bus, but very annoying when you just wanted to make a long belt. the new behavior is that the game will ignore any mouse movement that's perpendicular to the direction of the belt being placed.