Background BLE beacon region monitoring not working in iOS 15 which was previously working on iOS 14

I have the same issue and it is not yet fixed in iOS 15.1.

Same issue here. Very inconsistent behaviour, which we also hear from our users.

Our app starts in the background when it enters our Bluetooth beacon region and starts scanning. When the iPhone is right next to the device, it still finds zero peripherals sometimes. Our users also give this feedback, where on iOS 14 versions it worked near-100% of the time, where now it is very inconsistent.

So concretely, it doesn't call didDiscover peripheral after using scanForPeripherals. We give the service identifier of the device to the init of the CBCentralManager via the CBCentralManagerOptionRestoreIdentifierKey and also use that identifier as a parameter withServices for the scanForPeripherals method.

I've reproduced this locally a couple of times on iOS 15.1, where the scanning doesn't return anything for more than 20 seconds. Then, a couple of seconds after that, we get a trigger again didEnterRegion and start scanning, which finds the same device within a couple of seconds.

I have the same issue with our app. I'm testing with iOS 15.2 beta right now and the problem still exists. Usually you can turn off location services and turn it back on and it works again for a few hours (which of course is not the solution). (I have the same problem with Location Events since iOS 15, I suspect this is related).

The issue is still not fixed in iOS 15.2 final. :(

In our extensive bug report about this issue (beacon monitoring specifically) the status has been updated to 'Potential fix identified - For a future OS update'.

Same problem here. Still persists in iOS 15.2.

It is now update ios 15.3 version. My app still has that problem. Any solution?

Still not working on iOS 15.4. Are there any release notes from Apple restricting this feature from running in the background?

Just tested: still not fixed as of 15.5. If you manually kill the app, it immediately stops scanning, unlike in pre-iOS15 times.

We have same issues.

Sometimes a correct iBeacon does not start the app :(

When it fails it is often after many hours of not using our app.

Before iOS 15 if worked every time.

In AppDelegate's 'func application(_ application: UIApplication, didFinishLaunchingWithOptions             launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {'

I log the list of ibeacons the app is listening for, and if i start the app manually, after it did not automatically start, our ibeacon is listed. So the Phone knows it should react, but is not.

We have same trouble with iBeacon and iOS 15.5. Sometimes the app is startet in the background and didEnterRegion is working fine. But without any changes, some hours later, the app is not triggered when the app comes into the region of the iBeacon

Same Problem here ... Ranging/Scanning beacons seems to stop after a few minutes when the app is placed in background (even if we don't kill it).

Does anyone have found a solution or know if this "problem" is gonna be resolved in IOS16 ?

Same issue here with multiple iOS 15.X phones while iOS 14.2 does work (instant when pluggin in an iBeacon). On iPhone 15 it only sometimes(!) work if you keep the app open/in the foreground and turn off the screen.

I've also tried to figure out if Apple changed policy and doesnt allow background iBeacon scanning any more (which would be very bad), but so far I did not find such release notes.

How unbelievable it might be, it seems like (background) beacon scanning is just completely broken for almost 1 year already. Back then Apple also didnt address the major geofence issues that happened back then. Fixing that geofence bug took months (it broken smart homes, security apps, door lock apps, etc, it was insane) and Apple also never took responsibility for it. No release note or bug update mentioned it.

I guess this Bluetooth iBeacon monitoring bug is very similair since it's part of the same monitoring logic with in the 'core location' framework.