Shimano direct mount brakes – help needed

Hi all, I have a direct mount rear Shimano 105 brake and recently needed to replace the pads. The front pads were fine but the rear shoes have the securing screw closer to the middle of the shoe. This means that the supplied slot for said screw is in the wrong place and the pad won’t fit properly. I can’t find anything on line about this – has anyone else had this problem? Thanks