nsfw, Oct 22, 2015 : When someone calls me, the phone rings, but the phone app never comes up. If I unlock the phone, I'm just looking at whatever app I was running when I locked it. But the phone keeps ringing. Sometimes (but not always) if I open the notifications (by swiping down from the left side of the top edge of the screen) then I MIGHT see a notification that I can click on to answer the call. But usually there is no notification, the call just rings for a while and then goes to voicemail. I'm running Cyanogen, 12.1-YOG4PAS1NO. Has anyone else run into this? Is there a workaround? Thanks!