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How to Repair a Broken Project? - Fatal Error related to Animation State Machine

Using UE4.6.

I was working on my animinstance and setting up the state machine. I was doing a repetitive task that has been done before, nothing out of the ordinary. Then it froze and crashed. Now I can open the project but if I attempt to open any blueprint the engine crashes again.

The error output claims there was a fatal error when casting ‘AnimStateConduitNode’.

How do I fix this? I don’t think there is a forum for this so I posted it here… :confused: I did way too much work and fixed way too many things to lose it, it’s bad enough I lose the hours/days until someone knows how to fix it :frowning:

This is the error output:



Unknown exception - code 00000001 (first/second chance not available)

Fatal error: [File:D:\Development\UnrealEngine-46S\Engine\Source\Runtime\CoreUObject\Private\Templates\Casts.cpp] [Line: 11] 
Cast of AnimStateConduitNode //Game//Character//DMW//DMW_AnimInst.DMW_AnimInst:AnimGraph.AnimGraphNode_StateMachine_6.Locomo

KERNELBASE + 42141 bytes
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() + 285 bytes [d:\development\unrealengine-46s\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FMsg::Logf__VA() + 463 bytes [d:\development\unrealengine-46s\engine\source\runtime\core\private\misc\outputdevice.cpp:526]
UE4Editor_CoreUObject!CastLogError() + 87 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private	emplates\casts.cpp:12]
UE4Editor_KismetCompiler!CastChecked<UAnimStateNode,UObject>() + 173 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\public	emplates\casts.h:155]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessTransitionGetter() + 3803 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:1366]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ExpandGraphAndProcessNodes() + 1124 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:600]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessStateMachine() + 3130 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:884]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessAnimationNode() + 934 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:284]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::ProcessAllAnimationNodes() + 908 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:537]
UE4Editor_KismetCompiler!FAnimBlueprintCompiler::MergeUbergraphPagesIn() + 333 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\animblueprintcompiler.cpp:1073]
UE4Editor_KismetCompiler!FKismetCompilerContext::CreateAndProcessUbergraph() + 620 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\kismetcompiler.cpp:2589]
UE4Editor_KismetCompiler!FKismetCompilerContext::CreateFunctionList() + 484 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\kismetcompiler.cpp:3045]
UE4Editor_KismetCompiler!FKismetCompilerContext::Compile() + 4100 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\kismetcompiler.cpp:3280]
UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprintInner() + 476 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\kismetcompilermodule.cpp:79]
UE4Editor_KismetCompiler!FKismet2CompilerModule::CompileBlueprint() + 918 bytes [d:\development\unrealengine-46s\engine\source\editor\kismetcompiler\private\kismetcompilermodule.cpp:121]
UE4Editor_UnrealEd!FKismetEditorUtilities::GenerateBlueprintSkeleton() + 384 bytes [d:\development\unrealengine-46s\engine\source\editor\unrealed\private\kismet2\kismet2.cpp:531]
UE4Editor_UnrealEd!FBlueprintEditorUtils::RegenerateBlueprintClass() + 706 bytes [d:\development\unrealengine-46s\engine\source\editor\unrealed\private\kismet2\blueprinteditorutils.cpp:1111]
UE4Editor_CoreUObject!ULinkerLoad::RegenerateBlueprintClass() + 960 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\blueprint\blueprintsupport.cpp:124]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 4946 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3239]
UE4Editor_CoreUObject!ULinkerLoad::CreateExportAndPreload() + 27 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2441]
UE4Editor_CoreUObject!ULinkerLoad::LoadAllObjects() + 571 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2512]
UE4Editor_CoreUObject!LoadPackageInternal() + 1957 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:875]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::CreateImport() + 1172 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3386]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 233 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3430]
UE4Editor_CoreUObject!ULinkerLoad::operator<<() + 100 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3609]
UE4Editor_CoreUObject!UObjectProperty::SerializeItem() + 55 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\propertyobject.cpp:23]
UE4Editor_CoreUObject!FPropertyTag::SerializeTaggedProperty() + 202 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\public\uobject\propertytag.h:129]
UE4Editor_CoreUObject!UStruct::SerializeTaggedProperties() + 9746 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:1167]
UE4Editor_CoreUObject!UObject::SerializeScriptProperties() + 300 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\obj.cpp:887]
UE4Editor_CoreUObject!UObject::Serialize() + 662 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\obj.cpp:829]
UE4Editor_Engine!USceneComponent::Serialize() + 22 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\scenecomponent.cpp:1015]
UE4Editor_Engine!UPrimitiveComponent::Serialize() + 21 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\primitivecomponent.cpp:443]
UE4Editor_Engine!USkinnedMeshComponent::Serialize() + 21 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\skeletalmesh.cpp:4826]
UE4Editor_Engine!USkeletalMeshComponent::Serialize() + 142 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\skeletalmesh.cpp:4861]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!ULinkerLoad::CreateExportAndPreload() + 182 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2447]
UE4Editor_CoreUObject!ULinkerLoad::LoadAllObjects() + 571 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2512]
UE4Editor_CoreUObject!LoadPackageInternal() + 1957 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:875]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::CreateImport() + 1172 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3386]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 233 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3430]
UE4Editor_CoreUObject!ULinkerLoad::operator<<() + 100 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3609]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!UStruct::Link() + 125 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:459]
UE4Editor_CoreUObject!UClass::Link() + 117 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2782]
UE4Editor_Engine!UBlueprintGeneratedClass::Link() + 51 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\blueprintgeneratedclass.cpp:470]
UE4Editor_CoreUObject!UClass::Serialize() + 761 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2950]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 5388 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3283]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 116 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3436]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 3415 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3059]
UE4Editor_CoreUObject!ULinkerLoad::CreateExportAndPreload() + 27 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2441]
UE4Editor_CoreUObject!ULinkerLoad::LoadAllObjects() + 571 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2512]
UE4Editor_CoreUObject!LoadPackageInternal() + 1957 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:875]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::CreateImport() + 1172 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3386]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 233 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3430]
UE4Editor_CoreUObject!ULinkerLoad::operator<<() + 100 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3609]
UE4Editor_CoreUObject!UObjectProperty::SerializeItem() + 55 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\propertyobject.cpp:23]
UE4Editor_CoreUObject!FPropertyTag::SerializeTaggedProperty() + 202 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\public\uobject\propertytag.h:129]
UE4Editor_CoreUObject!UStruct::SerializeTaggedProperties() + 9746 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:1167]
UE4Editor_CoreUObject!UObject::SerializeScriptProperties() + 300 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\obj.cpp:887]
UE4Editor_CoreUObject!UObject::Serialize() + 662 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\obj.cpp:829]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_UnrealEd!FRegenerationHelper::ForcedLoadMembers() + 200 bytes [d:\development\unrealengine-46s\engine\source\editor\unrealed\private\kismet2\blueprinteditorutils.cpp:630]
UE4Editor_UnrealEd!FRegenerationHelper::ForcedLoadMembers() + 208 bytes [d:\development\unrealengine-46s\engine\source\editor\unrealed\private\kismet2\blueprinteditorutils.cpp:625]
UE4Editor_UnrealEd!FBlueprintEditorUtils::RegenerateBlueprintClass() + 266 bytes [d:\development\unrealengine-46s\engine\source\editor\unrealed\private\kismet2\blueprinteditorutils.cpp:1068]
UE4Editor_CoreUObject!ULinkerLoad::RegenerateBlueprintClass() + 960 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\blueprint\blueprintsupport.cpp:124]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 4946 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3239]
UE4Editor_CoreUObject!ULinkerLoad::CreateExportAndPreload() + 27 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2441]
UE4Editor_CoreUObject!ULinkerLoad::LoadAllObjects() + 571 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2512]
UE4Editor_CoreUObject!LoadPackageInternal() + 1957 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:875]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::Verify() + 772 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1705]
UE4Editor_CoreUObject!ULinkerLoad::FinalizeCreation() + 413 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1611]
UE4Editor_CoreUObject!ULinkerLoad::Tick() + 336 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:577]
UE4Editor_CoreUObject!ULinkerLoad::CreateLinker() + 72 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:355]
UE4Editor_CoreUObject!GetPackageLinker() + 2494 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linker.cpp:704]
UE4Editor_CoreUObject!LoadPackageInternal() + 1515 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:824]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::CreateImport() + 1172 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3386]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 233 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3430]
UE4Editor_CoreUObject!ULinkerLoad::operator<<() + 100 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3609]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!UStruct::Link() + 125 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:459]
UE4Editor_CoreUObject!UClass::Link() + 117 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2782]
UE4Editor_Engine!UBlueprintGeneratedClass::Link() + 51 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\blueprintgeneratedclass.cpp:470]
UE4Editor_CoreUObject!UClass::Serialize() + 761 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2950]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 5388 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3283]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 116 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3436]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 3415 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3059]
UE4Editor_CoreUObject!ULinkerLoad::CreateExportAndPreload() + 27 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2441]
UE4Editor_CoreUObject!ULinkerLoad::LoadAllObjects() + 571 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2512]
UE4Editor_CoreUObject!LoadPackageInternal() + 1957 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:875]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1102 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2134]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImportInner() + 1977 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2182]
UE4Editor_CoreUObject!ULinkerLoad::VerifyImport() + 178 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:1915]
UE4Editor_CoreUObject!ULinkerLoad::CreateImport() + 1172 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3386]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 233 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3430]
UE4Editor_CoreUObject!ULinkerLoad::operator<<() + 100 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3609]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!UStruct::Link() + 125 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:459]
UE4Editor_CoreUObject!UClass::Link() + 117 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2782]
UE4Editor_Engine!UBlueprintGeneratedClass::Link() + 51 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\blueprintgeneratedclass.cpp:470]
UE4Editor_Engine!UAnimBlueprintGeneratedClass::Link() + 43 bytes [d:\development\unrealengine-46s\engine\source\runtime\engine\private\animation\animblueprintgeneratedclass.cpp:191]
UE4Editor_CoreUObject!UClass::Serialize() + 761 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\class.cpp:2950]
UE4Editor_CoreUObject!ULinkerLoad::Preload() + 2386 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2769]
UE4Editor_CoreUObject!ULinkerLoad::CreateExport() + 5388 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3283]
UE4Editor_CoreUObject!ULinkerLoad::IndexToObject() + 116 bytes [d:\development\unrealengine-46s\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3436]


Hello,
you’ll have better chance to be helped by posting on answerhub (link is on top of the page) but as we are saturday… Try to check your autosaves and (with saving actual file) check if your last autosave is not too much far from where you are with the usual one to be not to bad to use.

Thanks for the response. Answerhub is much much slower and rarer to get an answer so I usually just post here.

The autosave loses a bit of work but it is usable. Thank you for pointing that out. If it happens again I will try to remember what I was doing when it occurred so I can make a bug report.