I'm running stock Lollipop on the Nexus 5 , but the new heads up notifications in Lollipop doesn't work correctly. They show up, displaying the correct information, but the buttons doesn't work. This is causing me to have to dismiss the notification, open the notification tray and act on the notification from there. Does everyone else have the same problem or is it something an app I'm using that's causing the problem? I've tested with both Hangouts video calls and the alarm clock.