Yes, so my Android experience today was that only "Boarding Pass Options" shows, which means no OLCI and certainly no boarding pass. The workaround being the More/Manage My Booking options, downloading the PDF, screenshot the PDF, then using Google Wallet to read the screenshot into the Wallet database.

So I know to de-install and re-install the app, and yes, "Boarding pass Options" is replaced with a more helpful "Check-in Now". But then I forgot the second thing that isn't working, namely the Simplified Check-in screen. That just hangs the app. Re-enter the app and I can do the More/Manage My Booking but I'm back to "Boarding Pass Options". Had I gone through the standard OLCI screens then it normally works ok, at least until the next flight.

Re-install the App a second time - and yes I can "Get boarding pass" and then "Show boarding pass" works fine. But I will probably need to de-install, re-install before my next flight

This degree of wrestling with BA's IT has not improved for several months, and has wrecked the BA App, which was generally very reliable at OLCI.