Android api 24 background beacon monitoring does not work

[rozcan]

Hi, I've an app working stable on android 6.0 and 5.0, it detects beacons in region even if the app is killed. But when i install the application on Sony Z5 that has android N version, it only detects on foreground. Below is the logs when application is killed. Scan started but no detection occurs. Is there a known bug on api 24?

04-12 15:52:20.978 15256-15256/com.workzonemobile D/CycledLeScanner: starting a new scan cycle
04-12 15:52:20.981 15256-15274/com.workzonemobile D/BluetoothAdapter: STATE_ON
04-12 15:52:20.985 15256-15256/com.workzonemobile D/CycledLeScanner: starting a new bluetooth le scan
04-12 15:52:20.989 15256-15256/com.workzonemobile D/CycledLeScannerForLollipop: starting non-filtered scan in SCAN_MODE_LOW_LATENCY
04-12 15:52:20.990 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 10000 milliseconds
04-12 15:52:20.990 15256-15274/com.workzonemobile D/BluetoothAdapter: STATE_ON
04-12 15:52:20.994 15256-15268/com.workzonemobile D/BluetoothLeScanner: onClientRegistered() - status=0 clientIf=5 mClientIf=0
04-12 15:52:20.994 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:20.994 15256-15256/com.workzonemobile D/CycledLeScanner: Scan started
04-12 15:52:22.024 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 8966 milliseconds
04-12 15:52:22.039 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:23.077 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 7912 milliseconds
04-12 15:52:23.083 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:24.124 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 6866 milliseconds
04-12 15:52:24.140 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:25.181 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 5809 milliseconds
04-12 15:52:25.199 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:26.240 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 4749 milliseconds
04-12 15:52:26.254 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:27.278 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 3712 milliseconds
04-12 15:52:27.286 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:28.327 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 2663 milliseconds
04-12 15:52:28.340 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:29.367 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 1623 milliseconds
04-12 15:52:29.385 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:30.418 15256-15256/com.workzonemobile D/CycledLeScanner: Waiting to stop scan cycle for another 572 milliseconds
04-12 15:52:30.434 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}
04-12 15:52:31.047 15256-15256/com.workzonemobile D/CycledLeScanner: Done with scan cycle
04-12 15:52:31.051 15256-15256/com.workzonemobile D/CycledLeScanner: stopping bluetooth le scan
04-12 15:52:31.051 15256-15256/com.workzonemobile D/CycledLeScannerForLollipop: Stopping scan
04-12 15:52:31.057 15256-15256/com.workzonemobile D/CycledLeScanner: Normalizing between scan period from 30000 to 29878
04-12 15:52:31.058 15256-15274/com.workzonemobile D/BluetoothAdapter: STATE_ON
04-12 15:52:31.060 15256-15256/com.workzonemobile D/CycledLeScannerForLollipop: This is Android L. Doing a filtered scan for the background.
04-12 15:52:31.062 15256-15256/com.workzonemobile D/CycledLeScannerForLollipop: starting filtered scan in SCAN_MODE_LOW_POWER
04-12 15:52:31.063 15256-15256/com.workzonemobile D/ScanFilterUtils: Set up a scan filter: BluetoothLeScanFilter [mDeviceName=null, mDeviceAddress=null, mUuid=null, mUuidMask=null, mServiceDataUuid=null, mServiceData=null, mServiceDataMask=null, mManufacturerId=76, mManufacturerData=[2, 21], mManufacturerDataMask=[-1, -1]]
04-12 15:52:31.064 15256-15274/com.workzonemobile D/BluetoothAdapter: STATE_ON
04-12 15:52:31.069 15256-15256/com.workzonemobile D/CycledLeScannerForLollipop: Waiting to start full Bluetooth scan for another 29878 milliseconds
04-12 15:52:31.070 15256-15269/com.workzonemobile D/BluetoothLeScanner: onClientRegistered() - status=0 clientIf=5 mClientIf=0
04-12 15:52:31.075 15256-15256/com.workzonemobile D/CycledLeScanner: Set a wakeup alarm to go off in 300000 ms: PendingIntent{ff43481: android.os.BinderProxy@fbfd926}

[mdxs]

This is not a https://github.com/AltBeacon/spec specification question, please ask in the appropriate software oriented project if still a concern.