When ticket gates are being set up to read barcoded e-tickets, are they configured entirely separately from magnetic tickets? Had a surprising experience at St Pancras today using a barcode ticket for the first time where the equivalent magstripe ticket works fine, but my e-ticket was rejected with an error suggesting it wasn't valid at that location. (it's quite a common ticket to be used into St Pancras - I've Tweeted EMR with the details so hopefully they'll get it fixed).