Stock lollipop 5.1.1 on m2
When you set a scheduled "Do Not Disturb" with "exceptions enabled", "calls and messages from favourite contacts only" and the sliders set for calls and messages; the phone enters silent mode at the scheduled time instead of priority. None of the favourite contacts notifications come through. The icon displayed on the notification bar is the circle with a line when it should be a star.
I have tried disabling and re-enabling "do not disturb", ensuring favourite contacts are starred, I have even factory reset the phone and reinstalled with pc companion but the issue remains. A scheduled "Do Not Disturb" never enters priority mode despite being set to do so. If I manually use the volume key I can bring up the menu for priority and allow exceptions that way but a scheduled one does not (I reaffirm it is toggled to do so on the Settings /Sound and Notifications / Do not Disturb menu with the sliders for messages and calls also toggled on)
Is this a fault? Other devices I have using lollipop work fine with Do Not Disturb. The M2 seems to ignore the toggle. Will there be a patch?