iOS App Crash on transaction

MongoDB Atlas App Services & Realm Realm
1

Crash on transaction

Crashed: com.apple.root.background-qos

0 Realm 0x1058abfb8 realm::Allocator::translate_less_critical(realm::Allocator::RefTranslation*, unsigned long) const + 68

1 Realm 0x1057fce30 realm::Array::init_from_ref(unsigned long) + 192

2 Realm 0x105ca356c realm::_impl::GroupFriend::get_history_ref(realm::Allocator&, unsigned long) + 68

3 Realm 0x105c3ba60 bool realm::Transaction::internal_advance_read<(anonymous namespace)::TransactLogValidator>((anonymous namespace)::TransactLogValidator*, realm::VersionID, realm::_impl::History&, bool) + 176

4 Realm 0x105c36400 realm::_impl::transaction::begin(std::__1::shared_ptrrealm::Transaction const&, realm::BindingContext*, realm::_impl::NotifierPackage&) + 416

5 Realm 0x105c2b77c realm::_impl::RealmCoordinator::promote_to_write(realm::Realm&) + 268

6 Realm 0x105ca1570 realm::Realm::begin_transaction() + 404

7 Realm 0x10588ee24 -[RLMRealm beginWriteTransactionWithError:] + 24

8 Inventa 0x10510b0a0 $s7Inventa15RealmDataHelperC33saveDataAA0I0CG_tFyycfU_Tf2i_n + 52

9 Inventa 0x1050c2c98 $sIeg_IeyB_TR + 20

10 libdispatch.dylib 0x19941c24c _dispatch_call_block_and_release + 32

11 libdispatch.dylib 0x19941ddb0 _dispatch_client_callout + 20

12 libdispatch.dylib 0x19942ea68 _dispatch_root_queue_drain + 656

13 libdispatch.dylib 0x19942f120 _dispatch_worker_thread2 + 116

14 libsystem_pthread.dylib 0x1e52d97d8 _pthread_wqthread + 216

15 libsystem_pthread.dylib 0x1e52e076c start_wqthread + 8

Code Sample

func saveAllEzoneDistinctNotifications(notifications: [Notifications]) {
        
        var filtered:[Notifications] = []
        for notif in notifications {
            for stId in notif.st_ids {
                notif.stId = stId
                notif.notif_key = "\(notif.ntId)-\(notif.stId))"
                filtered.append(notif)
            }
        }
        let backgroundQueue = DispatchQueue.global(qos: .background)
        backgroundQueue.async(execute: {
            do{
                let realm = try Realm()
                realm.beginWrite()
                realm.add(filtered, update: .all)
                try realm.commitWrite()
            }
            catch{
                print(error)
            }
        })
    }

Exception Type: EXC_BAD_ACCESS

Exception Subtype: KERN_INVALID_ADDRESS 0x00000003d74249bd

Release Type: User

Realm framework version: 10.5.1

Xcode version: 12.3

iOS/OSX version: 14.3
2

Are these unmanaged realm objects?

And this is also a cross-post to StackOverflow in case an answer pops up there.

3

Yes, It is realm object.

4

Notification Array is an unmanaged realm object array. st_ids is realm List.