Found some crash reports with following crash log, it will be great if you can look into it and provide some details if there is any way to avoid it.
#12. Crashed: com.esri.arcgis.agsoperationQueue.serial
0 libsystem_kernel.dylib 0x183045014 __pthread_kill + 8
1 libsystem_pthread.dylib 0x18310f334 pthread_kill + 112
2 libsystem_c.dylib 0x182fb99c4 abort + 140
3 libsystem_c.dylib 0x182f8e53c basename_r + 314
4 libc++.1.dylib 0x182a68c1c std::__1::mutex::unlock() + 56
5 LAFDBrush_Prod 0x100d10500 Esri_runtimecore::Mapping::Signal_base::empty_() const + 72
6 LAFDBrush_Prod 0x100c62c28 Esri_runtimecore::Mapping::Delegate<Esri_runtimecore::Mapping::Loadable, Esri_runtimecore::Mapping::Load_status>::forward(Esri_runtimecore::Mapping::Loadable&, Esri_runtimecore::Mapping::Load_status) const + 64
7 LAFDBrush_Prod 0x100c62a30 Esri_runtimecore::Mapping::Loadable::set_load_status_and_error_without_check_(Esri_runtimecore::Mapping::Load_status, Esri_runtimecore::Mapping::Error) + 196
8 LAFDBrush_Prod 0x100b44cb4 Esri_runtimecore::Mapping::Loadable::set_load_status_and_error_(Esri_runtimecore::Mapping::Load_status, Esri_runtimecore::Mapping::Error) + 180
9 LAFDBrush_Prod 0x100b44e20 Esri_runtimecore::Mapping::Loadable::set_load_status_and_error_(Esri_runtimecore::Mapping::Loadable const&) + 92
10 LAFDBrush_Prod 0x100e4ef0c Esri_runtimecore::Mapping::Signal<Esri_runtimecore::Mapping::Loadable const, Esri_runtimecore::Mapping::Load_status>::operator()(Esri_runtimecore::Mapping::Loadable const&, Esri_runtimecore::Mapping::Load_status) const + 420
11 LAFDBrush_Prod 0x100c62a50 Esri_runtimecore::Mapping::Loadable::set_load_status_and_error_without_check_(Esri_runtimecore::Mapping::Load_status, Esri_runtimecore::Mapping::Error) + 228
12 LAFDBrush_Prod 0x100b44cb4 Esri_runtimecore::Mapping::Loadable::set_load_status_and_error_(Esri_runtimecore::Mapping::Load_status, Esri_runtimecore::Mapping::Error) + 180
13 LAFDBrush_Prod 0x100e39060 Esri_runtimecore::Mapping::Service_info_loader<Esri_runtimecore::Mapping::ArcGIS_map_service_info>::handle_response_(std::__1::shared_ptr<Esri_runtimecore::Mapping::Request> const&, unsigned char const*, unsigned long, std::__1::shared_ptr<Esri_runtimecore::Common::Client_reference> const&) + 192
14 LAFDBrush_Prod 0x100cce4a8 Esri_runtimecore::Mapping::Request_delegator::handle_response(unsigned long long, unsigned char const*, unsigned long, std::__1::shared_ptr<Esri_runtimecore::Common::Client_reference> const&) + 416
15 LAFDBrush_Prod 0x100cce2a8 Esri_runtimecore::Mapping::Request::handle_response(unsigned char const*, unsigned long, std::__1::shared_ptr<Esri_runtimecore::Common::Client_reference> const&) + 136
16 LAFDBrush_Prod 0x1008548a4 RT_Request_handleResponse + 140
17 LAFDBrush_Prod 0x1005c5520 -[RTCRequest handleResponse:userDefinedError:error:] + 236
18 LAFDBrush_Prod 0x100718dc0 __71+[AGSRTCRequestDispatcher ags_kickOffCoreRequest:forRequestDispatcher:]_block_invoke.173 + 1040
19 LAFDBrush_Prod 0x100693550 __38-[AGSObservableOperation didComplete:]_block_invoke + 264
20 LAFDBrush_Prod 0x1006075bc ags_runWithMainThread + 76
21 LAFDBrush_Prod 0x10069341c -[AGSObservableOperation didComplete:] + 280
22 LAFDBrush_Prod 0x10068ee7c -[AGSRequestOperation didComplete:] + 396
23 LAFDBrush_Prod 0x10069325c -[AGSObservableOperation finishWithResult:error:] + 148
24 LAFDBrush_Prod 0x100692538 -[AGSRequestOperation finishWithResult:error:] + 700
25 LAFDBrush_Prod 0x1006931b8 -[AGSObservableOperation doCancel] + 72
26 LAFDBrush_Prod 0x10068ecdc -[AGSRequestOperation doCancel] + 380
27 LAFDBrush_Prod 0x1006b17d8 __40-[AGSOperationQueue cancelAllOperations]_block_invoke + 216
28 libdispatch.dylib 0x182f029e0 _dispatch_call_block_and_release + 24
29 libdispatch.dylib 0x182f029a0 _dispatch_client_callout + 16
30 libdispatch.dylib 0x182f10ad4 _dispatch_queue_serial_drain + 928
31 libdispatch.dylib 0x182f062cc _dispatch_queue_invoke + 884
32 libdispatch.dylib 0x182f12a50 _dispatch_root_queue_drain + 540
33 libdispatch.dylib 0x182f127d0 _dispatch_worker_thread3 + 124
34 libsystem_pthread.dylib 0x18310b1d0 _pthread_wqthread + 1096
35 libsystem_pthread.dylib 0x18310ad7c start_wqthread + 4
