I managed to get local notification when iBeacon (using Kontakt Beacon) enter a region in Background mode . at the same time I monitor 3 beacon regions with specific & u
CoreLocation is known to be fairly unstable with notifications both when monitoring regions and ranging beacons. We had to implement a similar filter to ranging notifications in our sample app, the source code is at https://github.com/BlueSenseNetworks/iOS
Basically the app keeps a circular buffer with the latest 10 sightings and makes a decision on what to display based on the type of the majority of sightings.