Some iOS 6 users have reported that Apple’s Do Not Disturb feature wasn’t automatically turned off by their devices on New Year’s Day. Though this hasn’t been a problem for every user, manually disabling and re-enabling Do Not Disturb is a quick fix for those having issues. A new year’s bug is nothing new for iOS users — in 2011, for instance, alarms failed to go off after being set on iOS devices. Ironically, Apple…