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Hi,I have an App that is using geofencing and beacons since about one year in the app store. Recently I noticed more and more crashes and users are reporting of missing notifications upon geofence entry or exit ( I send a local notification upon entry or exit).so i suspect those crash reports are related to those user reports. The crash reports indicate memory management issues: lib dispatch.dylib _dispatch_callblock_and_releaseThese problem only occur since iOS 10.3. So I have some reports with iOS 10.3 but most of them with iOS 11. When I run the app in the simulator the memory usage is at around 50MB and does not increase. Even when I simulate geofence entry and exit etc it stays around the 50 MB usage.So my first question is it possible that the app crashes when not in foreground when it uses only 50MB?To investigate further I implemented the function func applicationDidReceiveMemoryWarning(_ application: UIApplication)And send a local notification when it get´s called. And indeed sometimes I sometimes get this warning and I myself have irregularities with the geofence enter and exit notifications.Now to further investigate I installed another App to monitor the same geofence (IFTTT). Here too I have irregularities with the geofence enter and exit notifications.Until now I was quite relaxed as I was sure it´s the early iOS 11 beta´s that have memory management issue. But i´m using the latest Beta (15A5372a) and I guess we are close to the final now. Also what worries me is that some users experience these issues also with iOS 10.3.Any ideas how to investigate this further or does anybody experience something similar?Very BestStephan