According to JourneyCheck, the signalling is not having a good day:
Delays to services at Ascott-Under-Wychwood
Due to a fault with the signalling system at Ascott-under-Wychwood trains have to run at reduced speed on the line towards Oxford.
Train services running through this station may be delayed by up to 15 minutes. Disruption is expected until 16:00 27/10.
Last Updated:27/10/2018 11:06
Meanwhile, the earlier problems seem to have involved a track circuit between Shrub Hill and Foregate St.
According to
RTT» :
05:18 from Paddington - terminated at Shrub Hill.
Return working, 08:43 Great Malvern - Paddington, started from Shrub Hill.
07:13 from Hereford arrived at Foregate St on time, but left at 09:21, some 82 late.
Further delay at Charlbury. Arrived Paddington 107 late.
06:22 Paddington - Great Malvern terminated at Shrub Hill, arriving 15 late.
Return working, 09:45 Great Malvern - Paddington, started from Shrub Hill.
07:22 Paddington - Great Malvern terminated at Moreton.
Returned as a short working to Oxford.
10:45 Great Malvern - Paddington started from Oxford.
08:22 Paddington - Hereford ran normally. Through Foregate St at 10:49.