Crashlytics is reporting dozens of crashes every hour from `CFNetwork`. I have no idea what's causing it since this crash is on its own thread and the rest of the threads are doing something else in each crash log. The app seems to always be in 'Foreground' when this happens, so I'm certain it's nothing to do with background activity, but I can't rule this out. Any idea what's changed in iOS 11 that's causing the app to crash so often?
Crashed: com.apple.CFNetwork.Connection 0 libsystem_kernel.dylib 0x184f05338 __pthread_kill + 8 1 libsystem_pthread.dylib 0x1850194d4 pthread_kill$VARIANT$mp + 360 2 libsystem_c.dylib 0x184e74b0c abort + 140 3 libsystem_c.dylib 0x184e485f0 basename_r + 314 4 CFNetwork 0x185aeca34 TCPIOConnection::_handleTLSEvent(nw_tls_context*, tls_handshake_message_t, void () block_pointer, bool) + 640 5 libnetwork.dylib 0x1862a88c0 __tcp_connection_set_tls_message_handler_on_nw_connection_block_invoke + 168 6 libboringssl.dylib 0x1861862c0 __boringssl_context_handshake_message_handler_block_invoke + 160 7 libdispatch.dylib 0x184d69e04 _dispatch_call_block_and_release + 24 8 libdispatch.dylib 0x184d69dc4 _dispatch_client_callout + 16 9 libdispatch.dylib 0x184d73ef4 _dispatch_queue_serial_drain$VARIANT$mp + 532 10 libdispatch.dylib 0x184d74944 _dispatch_queue_invoke$VARIANT$mp + 340 11 libdispatch.dylib 0x184d73da8 _dispatch_queue_serial_drain$VARIANT$mp + 200 12 libdispatch.dylib 0x184d74944 _dispatch_queue_invoke$VARIANT$mp + 340 13 libdispatch.dylib 0x184d75510 _dispatch_root_queue_drain_deferred_wlh$VARIANT$mp + 428 14 libdispatch.dylib 0x184d7e0a8 _dispatch_workloop_worker_thread$VARIANT$mp + 620 15 libsystem_pthread.dylib 0x1850171e8 _pthread_wqthread + 924 16 libsystem_pthread.dylib 0x185016e40 start_wqthread + 4