This is a somewhat common crash coming out of 4.16 and 4.17. Users have not provided any description of their actions when the crash occurred.
The top line of the callstack and the source context are the same as [Link Removed], but the rest of the stack is different.
Source Context
675 /** 676 * Removes all elements from the set matching the specified key. 677 * @param Key - The key to match elements against. 678 * @return The number of elements removed. 679 */ 680 int32 Remove(KeyInitType Key) 681 { 682 int32 NumRemovedElements = 0; 683 684 ***** if (Elements.Num()) 685 { 686 FSetElementId* NextElementId = &GetTypedHash(KeyFuncs::GetKeyHash(Key)); 687 while(NextElementId->IsValidId()) 688 { 689 auto& Element = Elements[*NextElementId]; 690 if(KeyFuncs::Matches(KeyFuncs::GetSetKey(Element.Value),Key)) 691 { 692 // This element matches the key, remove it from the set. Note that Remove sets *NextElementId to point to the next 693 // element after the removed element in the hash bucket. 694 Remove(*NextElementId); 695 NumRemovedElements++;
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_UnrealEd!TSet<FEditorUndoClient * __ptr64,DefaultKeyFuncs<FEditorUndoClient * __ptr64,0>,FDefaultSetAllocator>::Remove() [set.h:685] UE4Editor_LevelEditor!SActorDetails::~SActorDetails() [sactordetails.cpp:207] UE4Editor_SlateCore!FSimpleSlot::~FSimpleSlot() UE4Editor_Slate!SDPIScaler::~SDPIScaler() UE4Editor_VREditor!AVREditorFloatingUI::~AVREditorFloatingUI() UE4Editor_VREditor!AVREditorDockableWindow::`scalar deleting destructor'() UE4Editor_CoreUObject!IncrementalPurgeGarbage() [garbagecollection.cpp:1112] UE4Editor_CoreUObject!StaticExit() [obj.cpp:4188] UE4Editor_CoreUObject!TBaseStaticDelegateInstance<void __cdecl() [delegateinstancesimpl.h:1027] UE4Editor!TBaseMulticastDelegate<void>::Broadcast() [delegatesignatureimpl.inl:937] UE4Editor!FEngineLoop::AppPreExit() [launchengineloop.cpp:3858] UE4Editor!FEngineLoop::Exit() [launchengineloop.cpp:2808] UE4Editor!GuardedMain() [launch.cpp:177] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-50103 in the post.