Wouter, it might be interesting for you:
There are a lot of data, but here is a repetitive errors (attempts) when check-in failed:
[2025-07-13T19:47:20.177Z] [*SOME guid here*] [DEBUG] [urc_notification::client] Creating auth header
[2025-07-13T19:47:20.177Z] [*SOME guid here*] [DEBUG] [urc_notification::client] Calling subscribe
[2025-07-13T19:47:20.584Z] [-] [DEBUG] [tower::buffer::worker] processing request
[2025-07-13T19:48:20.719Z] [-] [DEBUG] [tonic::transport::channel::service::connection] connection task error: hyper::Error(Io, Custom { kind: UnexpectedEof, error: "peer closed connection without sending TLS close_notify: https://docs.rs/rustls/latest/rustls/manual/_03_howto/index.html#unexpected-eof" })
[2025-07-13T19:48:20.719Z] [*SOME guid here*] [DEBUG] [urc_notification::client] Subscription to stream failure: Status { code: Unknown, message: "transport error", source: Some(tonic::transport::Error(Transport, hyper::Error(Io, Custom { kind: UnexpectedEof, error: "peer closed connection without sending TLS close_notify: https://docs.rs/rustls/latest/rustls/manual/_03_howto/index.html#unexpected-eof" }))) }
[2025-07-13T19:48:21.146Z] ["*SOME guid here*"] [DEBUG] [epic_app::correlation_id::service] Using correlation ID
[2025-07-13T19:48:21.146Z] [*SOME guid here*] [DEBUG] [urc_notification::client] Attempt 3 to subscribe to stream urc:uefn:***another guid here***