Welcome to the ever growing club I had legal font just slightly miss spaced, the number and first 2 letter were together and the first and last letter were gapped. Had to change mine. Interesting thing though, as I was changing them, the officer brought over a cadet and explained to her that their cameras would not recognise the spacing, absolute bull droppings I thought , and then told him that their camera recognised it on the Severn Bridge as did Kens cameras in London, he actually smiled and said I know, ah well.