I’m using Interrail around the UK and despite London’s new Elisabeth Line trains clearly being included, we’ve had confusion at the gates where you need to show your Global Pass. I was once refused entry at Liverpool St Station, the gate staff directing me to the ticket office to get a paper ticket proving the validity of my app pass – but of course there they had no idea about this. Tried entering with different guy at the gates and he let me through.
This response by TfL suggests they really have a policy in place that requires a paper ticket, but they fail to mention where exactly to get these: https://tfl.gov.uk/corporate/transparency/freedom-of-information/foi-request-detail?referenceId=FOI-1415-2223
Since then, I have asked about this at a TfL ticket office as well as 2 national rail ticket offices, but none of the staff had heard of issuing paper proof tickets and some pointed out the app should simply be accepted at the gate. So is this requirement for a paper version just nonsense? Who at Eurail can notify the operator so that the staff at the EL gates simply accepts the app?