Smartsheet does not sort properly by numbers when you get above 9. Currently, it'll sort 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9 rather than 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and the only way to fix it right now is by adding a character in front of the ones below 10.