Looks like it's not just me then!
I did think about asking for a printed BP (in fact lately I've had issues with the app and getting mobile BP's). I went to the check-in desk and wasn't offered one, the phone scanned OK, so I didn't really worry too much.

A short explanation at the lounge (after a "hmm, WTP/Bronze... Nope") and typing my details into the computer yielded results. Just thought it was worth mentioning.