Caught Signal

Can anyone tell me what a caught signal is (no number given) and why it might be crashing my Android build?

Caught signal

FGoogleARCoreSessionConfigCookSupport::OnSerializeSessionConfig(UARSessionConfig*, FArchive&, TArray<unsigned char, TSizedDefaultAllocator<32> >&) Address = 0x163e53656 (filename not found) [in UE4Editor-GoogleARCoreBase.dylib]
UARSessionConfig::Serialize(FArchive&) Address = 0x12586e3f1 (filename not found) [in UE4Editor-AugmentedReality.dylib]
FArchiveSaveTagExports::ProcessTaggedObjects() Address = 0x102ae8dee (filename not found) [in UE4Editor-CoreUObject.dylib]
FPackageExportTagger::TagPackageExports(FArchiveSaveTagExports&, bool) Address = 0x102b052f0 (filename not found) [in UE4Editor-CoreUObject.dylib]
UPackage::Save(UPackage*, UObject*, EObjectFlags, wchar_t const*, FOutputDevice*, FLinkerLoad*, bool, bool, unsigned int, ITargetPlatform const*, FDateTime const&, bool, FArchiveDiffMap*) Address = 0x102aed551 (filename not found) [in UE4Editor-CoreUObject.dylib]
UEditorEngine::Save(UPackage*, UObject*, EObjectFlags, wchar_t const*, FOutputDevice*, FLinkerLoad*, bool, bool, unsigned int, ITargetPlatform const*, FDateTime const&, bool, FArchiveDiffMap*) Address = 0x10b0bed0f (filename not found) [in UE4Editor-UnrealEd.dylib]
UCookOnTheFlyServer::SaveCookedPackage(UPackage*, unsigned int, TArray<FName, TSizedDefaultAllocator<32> >&, TArray<FSavePackageResultStruct, TSizedDefaultAllocator<32> >&) Address = 0x10aeb8732 (filename not found) [in UE4Editor-UnrealEd.dylib]
UCookOnTheFlyServer::SaveCookedPackages(UPackage*, TArray<FName, TSizedDefaultAllocator<32> > const&, TArray<ITargetPlatform const*, TSizedDefaultAllocator<32> > const&, FCookerTimer&, unsigned int&, unsigned int&) Address = 0x10aeb48b2 (filename not found) [in UE4Editor-UnrealEd.dylib]
UCookOnTheFlyServer::TickCookOnTheSide(float, unsigned int&, ECookTickFlags) Address = 0x10aea0e8a (filename not found) [in UE4Editor-UnrealEd.dylib]
UCookOnTheFlyServer::Tick(float) Address = 0x10ae9ecfc (filename not found) [in UE4Editor-UnrealEd.dylib]
FTickableEditorObject::TickObjects(float) Address = 0x10b0b131d (filename not found) [in UE4Editor-UnrealEd.dylib]
UEditorEngine::Tick(float, bool) Address = 0x10b0ae2ad (filename not found) [in UE4Editor-UnrealEd.dylib]
UUnrealEdEngine::Tick(float, bool) Address = 0x10bb396f8 (filename not found) [in UE4Editor-UnrealEd.dylib]
FEngineLoop::Tick() Address = 0x1018853bf (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0x10188fd38 (filename not found) [in UE4Editor]
-[UE4AppDelegate runGameThread:] Address = 0x10189a2ae (filename not found) [in UE4Editor]
-[FCocoaGameThread main] Address = 0x101b25b01 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x7fff541af87e (filename not found) [in Foundation]
_pthread_body Address = 0x7fff7e5e82eb (filename not found) [in libsystem_pthread.dylib]
_pthread_start Address = 0x7fff7e5eb249 (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff7e5e740d (filename not found) [in libsystem_pthread.dylib]

Hi Cameron_K,

A signal is a way to communicate between processes. Here the signal is probably interpreted as an error occurring in Google AR Core. You should find more details in AR Core documentation.

Cheers!