387146 & 387143 pass Uffington on 10 May 2021 with the 5Z06 12:30 Swindon to Didcot Parkway crew training special. Due to the Class 800 fiasco, guards were being quickly trained in order to use these EMUs on services to the west of Didcot for the first time. Despite the fact that virtually all passenger trains on this line were cancelled, and therefore there was masses of free line capacity, this still managed to run 19 minutes late.