Child Actor Component outputs error when child class is set to empty using blutility

LogOutputDevice: Error: === Handled ensure: ===
LogOutputDevice: Error: Ensure condition failed: ChildActorTemplate == nullptr [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\Engine\Private\Components\ChildActorComponent.cpp] [Line: 95]
LogOutputDevice: Error: Found unexpected ChildActorTemplate BP_MeshActor01_C /Game/BP_MyActor.Default__BP_MyActor_C:Comp01.Comp01_BP_MeshActor01_C_CAT when ChildActorClass is null
LogOutputDevice: Error: Stack: 
LogOutputDevice: Error: [Callstack] 0x00000000C0C32786 UE4Editor-Core.dll!FWindowsPlatformStackWalk::StackWalkAndDump() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\private\windows\windowsplatformstackwalk.cpp:200]
LogOutputDevice: Error: [Callstack] 0x00000000C09D123A UE4Editor-Core.dll!FDebug::EnsureFailed() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:298]
LogOutputDevice: Error: [Callstack] 0x00000000C09EB906 UE4Editor-Core.dll!FDebug::OptionallyLogFormattedEnsureMessageReturningFalse() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:425]
LogOutputDevice: Error: [Callstack] 0x00000000A5A75451 UE4Editor-Engine.dll!UChildActorComponent::Serialize() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\components\childactorcomponent.cpp:95]
LogOutputDevice: Error: [Callstack] 0x00000000AD5CF26A UE4Editor-UnrealEd.dll!FTransaction::FObjectRecord::SerializeContents() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\unrealed\private\editortransaction.cpp:150]
LogOutputDevice: Error: [Callstack] 0x00000000AD5819E3 UE4Editor-UnrealEd.dll!FTransaction::FObjectRecord::FObjectRecord() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\unrealed\private\editortransaction.cpp:80]
LogOutputDevice: Error: [Callstack] 0x00000000AD5CBDEC UE4Editor-UnrealEd.dll!FTransaction::SaveObject() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\unrealed\private\editortransaction.cpp:392]
LogOutputDevice: Error: [Callstack] 0x00000000B9ACBC12 UE4Editor-CoreUObject.dll!SaveToTransactionBuffer() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:2161]
LogOutputDevice: Error: [Callstack] 0x00000000B9A01112 UE4Editor-CoreUObject.dll!UObject::Modify() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\obj.cpp:1106]
LogOutputDevice: Error: [Callstack] 0x00000000A5AA9C6B UE4Editor-Engine.dll!USceneComponent::DetachFromComponent() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:2009]
LogOutputDevice: Error: [Callstack] 0x00000000A5E28A62 UE4Editor-Engine.dll!UWorld::DestroyActor() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\levelactor.cpp:620]
LogOutputDevice: Error: [Callstack] 0x00000000A5A406DB UE4Editor-Engine.dll!UChildActorComponent::DestroyChildActor() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\components\childactorcomponent.cpp:652]
LogOutputDevice: Error: [Callstack] 0x00000000A5A767CD UE4Editor-Engine.dll!UChildActorComponent::SetChildActorClass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\components\childactorcomponent.cpp:454]
LogOutputDevice: Error: [Callstack] 0x00000000A5509BC2 UE4Editor-Engine.dll!UChildActorComponent::execSetChildActorClass() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\classes\components\childactorcomponent.h:46]
LogOutputDevice: Error: [Callstack] 0x00000000B9875264 UE4Editor-CoreUObject.dll!UFunction::Invoke() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4515]
LogOutputDevice: Error: [Callstack] 0x00000000B9A39B04 UE4Editor-CoreUObject.dll!UObject::CallFunction() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:732]
LogOutputDevice: Error: [Callstack] 0x00000000B9A4F9D1 UE4Editor-CoreUObject.dll!UObject::ProcessContextOpcode() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2167]
LogOutputDevice: Error: [Callstack] 0x00000000B9A51B02 UE4Editor-CoreUObject.dll!UObject::ProcessInternal() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
LogOutputDevice: Error: [Callstack] 0x00000000B9A3A50E UE4Editor-CoreUObject.dll!UObject::CallFunction() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:856]
LogOutputDevice: Error: [Callstack] 0x00000000B9A51B02 UE4Editor-CoreUObject.dll!UObject::ProcessInternal() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
LogOutputDevice: Error: [Callstack] 0x00000000B9875264 UE4Editor-CoreUObject.dll!UFunction::Invoke() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4515]
LogOutputDevice: Error: [Callstack] 0x00000000B9A50EF6 UE4Editor-CoreUObject.dll!UObject::ProcessEvent() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1314]
LogOutputDevice: Error: [Callstack] 0x00000000A55BE64B UE4Editor-Engine.dll!AActor::ProcessEvent() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\engine\private\actor.cpp:693]
LogOutputDevice: Error: [Callstack] 0x00000000A854FDEC UE4Editor-DetailCustomizations.dll!FObjectDetails::OnExecuteCallInEditorFunction() [d:\build\++ue4+release-4.18+compile\sync\engine\source\editor\detailcustomizations\private\objectdetails.cpp:196]
LogOutputDevice: Error: [Callstack] 0x00000000A843E5E6 UE4Editor-DetailCustomizations.dll!TMemberFunctionCaller<FObjectDetails,FReply (__cdecl FObjectDetails::*)(TWeakObjectPtr<UFunction,FWeakObjectPtr>) __ptr64>::operator()<TWeakObjectPtr<UFunction,FWeakObjectPtr> const & __ptr64>() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public
\delegates\delegateinstanceinterface.h:165]
LogOutputDevice: Error: [Callstack] 0x00000000A843F5CF UE4Editor-DetailCustomizations.dll!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int,0>,TWeakObjectPtr<UFunction,FWeakObjectPtr> >::ApplyAfter<TMemberFunctionCaller<FObjectDetails,FReply (__cdecl FObjectDetails::*)(TWeakObjectPtr<UFunction,FWeakObjectPtr>) __ptr64> >() [d:\build\++ue4+release-4.
18+compile\sync\engine\source\runtime\core\public\templates\tuple.h:422]
LogOutputDevice: Error: [Callstack] 0x00000000A8500D35 UE4Editor-DetailCustomizations.dll!TBaseSPMethodDelegateInstance<0,FObjectDetails,0,FReply __cdecl(void),TWeakObjectPtr<UFunction,FWeakObjectPtr> >::Execute() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:327]
LogOutputDevice: Error: [Callstack] 0x00000000B9402B27 UE4Editor-Slate.dll!TBaseDelegate<FReply>::Execute() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:537]
LogOutputDevice: Error: [Callstack] 0x00000000B942EA04 UE4Editor-Slate.dll!SButton::OnMouseButtonUp() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:282]
LogOutputDevice: Error: [Callstack] 0x00000000B9245EFC UE4Editor-Slate.dll!<lambda_1002768c627006711ef2f351a87ec0e7>::operator()() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5263]
LogOutputDevice: Error: [Callstack] 0x00000000B9218095 UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:234]
LogOutputDevice: Error: [Callstack] 0x00000000B92B28A7 UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5252]
LogOutputDevice: Error: [Callstack] 0x00000000B929B092 UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5750]
LogOutputDevice: Error: [Callstack] 0x00000000B928D902 UE4Editor-Slate.dll!FSlateApplication::OnMouseUp() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5730]
LogOutputDevice: Error: [Callstack] 0x00000000CBAAE54B UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1725]
LogOutputDevice: Error: [Callstack] 0x00000000CBAA1A48 UE4Editor-ApplicationCore.dll!FWindowsApplication::DeferMessage() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2171]
LogOutputDevice: Error: [Callstack] 0x00000000CBAB03EC UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessMessage() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:888]
LogOutputDevice: Error: [Callstack] 0x00000000CBA9D5A9 UE4Editor-ApplicationCore.dll!FWindowsApplication::AppWndProc() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:725]
LogOutputDevice: Error: [Callstack] 0x0000000077519BBD USER32.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00000000775198C2 USER32.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x00000000CBAB1516 UE4Editor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:129]
LogOutputDevice: Error: [Callstack] 0x000000003F3950C8 UE4Editor.exe!FEngineLoop::Tick() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3220]
LogOutputDevice: Error: [Callstack] 0x000000003F3A5430 UE4Editor.exe!GuardedMain() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
LogOutputDevice: Error: [Callstack] 0x000000003F3A54AA UE4Editor.exe!GuardedMainWrapper() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
LogOutputDevice: Error: [Callstack] 0x000000003F3B2379 UE4Editor.exe!WinMain() [d:\build\++ue4+release-4.18+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:210]
LogOutputDevice: Error: [Callstack] 0x000000003F3B3D57 UE4Editor.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
LogOutputDevice: Error: [Callstack] 0x00000000773F59CD kernel32.dll!UnknownFunction []
LogOutputDevice: Error: [Callstack] 0x000000007762A561 ntdll.dll!UnknownFunction []