Description

This is a longstanding crash that occurs with low frequency per release, but has affected 400 users since the 4.11 release. Unfortunately among all of them, only one has provided any description.

User Descriptions

  • My character did not had its skeletal?

Source Context

1792       private:
 1793       
 1794       	/**
 1795       	 * Adds unique element to array if it doesn't exist.
 1796       	 *
 1797       	 * @param Args Item to add.
 1798       	 * @returns Index of the element in the array.
 1799       	 */
 1800       	template <typename ArgsType>
 1801       	int32 AddUniqueImpl(ArgsType&& Args)
 1802       	{
 1803       		int32 Index;
 1804 ***** 		if (Find(Args, Index))
 1805       		{
 1806       			return Index;
 1807       		}
 1808       
 1809       		return Add(Forward<ArgsType>(Args));
 1810       	}
Steps to Reproduce

repro steps currently unknown

Callstack
Access violation - code c0000005 (first/second chance not available)

UE4Editor_UnrealEd!TArray<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0>,FDefaultAllocator>::AddUniqueImpl<TSharedRef<FAssetThumbnailPool::FThumbnailInfo,0> const & __ptr64>() [array.h:1805]
UE4Editor_UnrealEd!FAssetThumbnailPool::Tick() [assetthumbnail.cpp:1009]
UE4Editor_UnrealEd!FTickableEditorObject::TickObjects() [tickableeditorobject.h:21]
UE4Editor_UnrealEd!UEditorEngine::Tick() [editorengine.cpp:1424]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [unrealedengine.cpp:402]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3215]
UE4Editor!GuardedMain() [launch.cpp:166]
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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Cannot Reproduce
ComponentTools
Affects Versions4.114.124.134.144.154.164.174.184.19
CreatedSep 20, 2017
ResolvedDec 13, 2018
UpdatedJan 2, 2019