I can confirm this from today's flight. Also the "Save Boarding Pass as PDF" option below the preview didn't work for me at all, neither through app nor website.

That's on top of the membership card not working for me at all for the last minimum 4 months. Whenever I have a flight with another Oneworld airline, they have to type in my number from a screenshot I took. Today at the QR lounge in LHR T4 they didn't want to accept it but a little debating (and the preview on the top left of the at least says "Silver") they allowed it. It's ... annoying.

I'm really happy when I'll have QR Gold somewhen in October and won't need this anymore. Their app isn't great either, but at least it works most of the time.

(And I appreciate Lufthansa so much more now. Not to mention how much more seamless Star Alliance has been for me, whereas in Oneworld everone does their own thing.)