59203 slowly approaches a red signal at Denchworth on 23 January 2023, as it works the 6A60 08:32 Whatley Quarry to Oxford Banbury Road Mendip Rail stone train. This had entered the relief line at Challow running 29 minutes late, but left the loop at Wantage Road at the booked time, despite then holding up the 1L14 09:23 Swansea to Paddington GWR service.