Error unsubscribing from notifications: PlatformException(reactive_ble_mobile.Central.(unknown context at $101519dac).Failure:1, The operation couldn’t be completed. (reactive_ble_mobile.Central.(unknown context at $101519dac).Failure error 1.), {}, null)

[EINS-SD-MOHAMMED]

Describe the bug
I am experiencing an issue with BLE notifications in my Flutter application using the flutter_reactive_ble package. Notifications work correctly on Android, but on iOS, they automatically unsubscribe without any explicit action, leading to no notifications being received.
I receive the following error:
Error unsubscribing from notifications: PlatformException(reactive_ble_mobile.Central.(unknown context at $101c31dac).Failure:1, The operation couldn’t be completed. (reactive_ble_mobile.Central.(unknown context at $101c31dac).Failure error 1.), {}, null)

To Reproduce
Steps to reproduce the behavior:

1. Connect to a BLE device that supports notifications.
2. Subscribe to notifications for a characteristic.
3. Send data to the characteristic using writeCharacteristicWithoutResponse.
4. Observe that notifications are received on Android, but on iOS, they stop with an error as:
   Error unsubscribing from notifications: PlatformException(reactive_ble_mobile.Central.(unknown context at $101c31dac).Failure:1, The operation couldn’t be completed. (reactive_ble_mobile.Central.(unknown context at $101c31dac).Failure error 1.), {}, null)

Expected behavior
I expect to receive notifications continuously from the device on both iOS and Android after sending data.

• I tried doing the same with a general BLE scanner application (e.g. nRF Connect) and it exhibits the expected behavior as described above: Not Used

Smartphone / tablet

• Iphone 15 Plus
• OS: iOS 18.0.1
• Package version: 5.3.1

Peripheral device

• Vendor, model: Nedap NVite Reader
• Does it run a custom firmware / software: no

Additional context
The logs for both the OS are as follows

Android Logs
D/BluetoothGatt(29225): connect() - device: XX:XX:XX:XX:36:BA, auto: true
D/BluetoothGatt(29225): registerApp()
D/BluetoothGatt(29225): registerApp() - UUID=376c6bd9-06a3-46b0-b08b-05af7be6a55b
D/BluetoothGatt(29225): onClientRegistered() - status=0 clientIf=5
D/BluetoothAdapter(29225): getBleEnabledArray(): ON
D/BluetoothGatt(29225): onClientConnectionState() - status=0 clientIf=5 device=XX:XX:XX:XX:36:BA
D/BluetoothGatt(29225): discoverServices() - device: XX:XX:XX:XX:36:BA
D/BluetoothGatt(29225): onConnectionUpdated() - Device=XX:XX:XX:XX:36:BA interval=6 latency=0 timeout=500 status=0
D/BluetoothGatt(29225): onSearchComplete() = Device=XX:XX:XX:XX:36:BA Status=0
I/flutter (29225): Service UUID: 00001800-0000-1000-8000-00805f9b34fb
I/flutter (29225): Service UUID: 00001801-0000-1000-8000-00805f9b34fb
I/flutter (29225): Service UUID: 0000180a-0000-1000-8000-00805f9b34fb
I/flutter (29225): Service UUID: 87b1de8d-e7cb-4ea8-a8e4-290209522c83
D/BluetoothGatt(29225): onConnectionUpdated() - Device=XX:XX:XX:XX:36:BA interval=39 latency=0 timeout=500 status=0
I/flutter (29225): Data sent: [8, 0, 0, 0, 0, 0, 0, 4, 88]
I/flutter (29225): isNotifiable: true
D/BluetoothGatt(29225): setCharacteristicNotification() - uuid: 540810c2-d573-11e5-ab30-625662870761 enable: true
I/flutter (29225): Got Notification
I/flutter (29225): Notification data: [65, 127, 143, 162, 132, 86, 72, 234, 172]
I/flutter (29225): 417f8fa2845648eaac
D/BluetoothGatt(29225): onClientConnectionState() - status=19 clientIf=5 device=XX:XX:XX:XX:36:BA
D/BluetoothGatt(29225): setCharacteristicNotification() - uuid: 540810c2-d573-11e5-ab30-625662870761 enable: false

iOS Logs
flutter: 080000000000000552
flutter: 7cfe70936cba9edcc187d53faf4b176b
Warning! No event channel set up to report a connection update
flutter: Service UUID: 180a
flutter: Service UUID: 87b1de8d-e7cb-4ea8-a8e4-290209522c83
flutter: isNotifiable: true
flutter: Data sent: [8, 0, 0, 0, 0, 0, 0, 5, 82]
flutter: Error unsubscribing from notifications: PlatformException(reactive_ble_mobile.Central.(unknown context at $101519dac).Failure:1, The operation couldn’t be completed. (reactive_ble_mobile.Central.(unknown context at $101519dac).Failure error 1.), {}, null)