Planning a journey involving Hertford Bus Station – for example, tps://api.tfl.gov.uk/Journey/JourneyResults/Hertford%20Bus%20Station/to/Liverpool%20Street%20Station?nationalSearch=true returns a DisambiguationResult containing:
The public journey planner makes the same mistake:
Hertford Bus Station is, of course, in Hertford not in Bishops Stortford which isn’t even nearby.