I honestly don't get why you guys had to ***** with the 'wind down' settings. It was perfect the way it was. I have wind down set from 11 PM - 7AM and since the new update not once has it actually turned on even though it'll be past 11. Not only that, but before it could easily be turned on and off and now it's just trash, to be frank. Small thing to ***** about but what a ***** up on your part. Please revert 'wind down' back
You mean the feature described in here ?
If this behaves erratically after an update, you could wipe the cache partition :
That's known to have helped many a troubled smartphone.