This is a trending crash coming out of the 4.17.0 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack shares some similarities to an older 4.14 crash that was fixed ([Link Removed])
Source Context
121 void FMallocTBB::Free( void* Ptr )
122 {
123 if( !Ptr )
124 {
125 return;
126 }
127 MEM_TIME(MemTime -= FPlatformTime::Seconds())
128 #if UE_BUILD_DEBUG || UE_BUILD_DEVELOPMENT
129 ***** FMemory::Memset(Ptr, DEBUG_FILL_FREED, scalable_msize(Ptr));
130 #endif
131 IncrementTotalFreeCalls();
132 scalable_free(Ptr);
133
134 MEM_TIME(MemTime += FPlatformTime::Seconds())
135 }
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) UE4Editor_Core!rml::internal::ExtMemoryPool::initTLS() UE4Editor_Core!FMallocTBB::Free() [malloctbb.cpp:130] UE4Editor_Core!FMemory::Free() [fmemory.inl:75] UE4Editor_Engine!UBlueprintGeneratedClass::CreatePersistentUberGraphFrame() [blueprintgeneratedclass.cpp:1218] UE4Editor_CoreUObject!UObjectBase::SetClass() [uobjectbase.cpp:255] UE4Editor_UnrealEd!FBlueprintCompileReinstancer::MoveCDOToNewClass() [kismetreinstanceutilities.cpp:1528] UE4Editor_Kismet!MoveSkelCDOAside() [blueprintcompilationmanager.cpp:1854] UE4Editor_Kismet!FBlueprintCompilationManagerImpl::FlushCompilationQueueImpl() [blueprintcompilationmanager.cpp:504] UE4Editor_Kismet!FBlueprintCompilationManagerImpl::CompileSynchronouslyImpl() [blueprintcompilationmanager.cpp:188] UE4Editor_UnrealEd!FKismetEditorUtilities::CompileBlueprint() [kismet2.cpp:750] UE4Editor_UnrealEd!FInternalPlayLevelUtils::ResolveDirtyBlueprints() [playlevel.cpp:1850] UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() [playlevel.cpp:2385] UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() [playlevel.cpp:1218] UE4Editor_UnrealEd!UEditorEngine::Tick() [editorengine.cpp:1549] UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [unrealedengine.cpp:396] 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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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48455 in the post.
| 0 |
| Component | UE - Gameplay - Blueprint |
|---|---|
| Affects Versions | 4.17 |
| Target Fix | 4.18 |
| Created | Aug 15, 2017 |
|---|---|
| Resolved | Sep 25, 2017 |
| Updated | Apr 27, 2018 |