221123 passes milepost 99½ near Little Haresfield on 18 April 2017 with the 1V46 06:40 York to Plymouth CrossCountry service. Because this was running a few minutes late, the 2G82 09:36 Swindon to Cheltenham GWR DMU had been allowed to cross over from the Golden Valley Line in front of it, consequently it was just picking up speed again, after receiving a signal check.