After waiting at a red signal just east of here for ten minutes, 165122 gets underway again at Uffington on 29 October 2018 with the 5Z81 10:13 Reading Traincare Depot to Swindon crew training run. Although it was running 13 minutes early at Challow, it seemed a little odd that it was stopped at a red on the mainline until right time, especially as this held up the following HST. Even stranger was it getting looped just before Swindon, and eventually arriving at Swindon 49 minutes late. For this reason, I didn't wait for the 5Z84 return working.