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For anyone encountering this thread.We have encountered a similar crash:<Crashed: com.apple.CFNetwork.Connection0 CoreFoundation 0x1848521e4 CFDictionaryGetValue + 1001 CFNetwork 0x185026988 Tube::_onqueue_prepAllowedProtocols() + 2642 CFNetwork 0x185026750 invocation function for block in Tube::_onqueue_connect() + 403 CFNetwork 0x185025d6c Tube::_onqueue_connect() + 1724 CFNetwork 0x185025ca8 invocation function for block in Tube::initialize(BaseAwaitingTube*) + 445 libdispatch.dylib 0x184284aa0 _dispatch_call_block_and_release + 246 libdispatch.dylib 0x184284a60 _dispatch_client_callout + 167 libdispatch.dylib 0x18428e9b4 _dispatch_queue_serial_drain$VARIANT$mp + 6088 libdispatch.dylib 0x18428f2fc _dispatch_queue_invoke$VARIANT$mp + 3369 libdispatch.dylib 0x18428e86c _dispatch_queue_serial_drain$VARIANT$mp + 28010 libdispatch.dylib 0x18428f2fc _dispatch_queue_invoke$VARIANT$mp + 33611 libdispatch.dylib 0x18428fcc8 _dispatch_root_queue_drain_deferred_wlh$VARIANT$mp + 34012 libdispatch.dylib 0x184298098 _dispatch_workloop_worker_thread$VARIANT$mp + 66813 libsystem_pthread.dylib 0x1845b7e70 _pthread_wqthread + 86014 libsystem_pthread.dylib 0x1845b7b08 start_wqthread + 4>We also found a fix. In our application we are loading a lot of images. These urls all had that http protocol, while it expected https.The system seemed to handle the redirect for us, since we could see the images being loaded after another call to the same url, but with https protocol.Older iOS version (before 12) apparently have problems with the large amount of extra requests/redirects.After defaulting to using https for our images the crash disappeared.