Some changes have recently been made to settings at a few stations.
Kentish Town: from 8th October the continuation exit setting has been removed while the Underground station is closed. This means that the OSI with Kentish Town West now works again without leaving passengers with an incomplete journey.
Euston LU, Euston Square and Blackfriars LU: from the September fares revision the continuation entry setting has been removed at these stations. Historically there were problems with passengers arriving at the mainline stations and not needing to touch out due to open gates or a lack of gates. The OSIs all still work as before so the journeys will continue to be joined together.