Last week, my partner and I both were suddenly no longer able to obtain bounties using the app.
It doesn't work in orbit or in the tower. I haven't tried it when being offline, though.
When selecting a bounty, it just has the yellow spinning circle forever. It just never lands in the game.
I'm having the same problem. I've checked push notifications, cleared memory, rebooted the phone, with no success. I was thinking about uninstalling/reinstalling the app but haven't done that yet. No problems with transferring in/out of the vault though.