Description

Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage.

Frequency: 4/4

CrashReporter: [Link Removed]

Steps to Reproduce

1. Open project at link:
[Link Removed]
2. Open BP_BuildStage in Content>Blueprints folder
3. Press PIE

Callstack

MachineId:4E82586D46B558EA69EF0EAA821297B1
EpicAccountId:1558531203f84e81b70959b8a59badef

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

UE4Editor_CoreUObject!UObjectBase::IsValidLowLevelFast() + 118 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\private\uobject\uobjectbase.cpp:306]
UE4Editor_CoreUObject!FGCCollector::HandleObjectReference() + 83 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\private\uobject\garbagecollection.cpp:269]
UE4Editor_Engine!FSimpleObjectReferenceCollectorArchive::operator<<() + 77 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\public\uobject\garbagecollection.h:460]
UE4Editor_CoreUObject!UObjectProperty::SerializeItem() + 55 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\private\uobject\propertyobject.cpp:32]
UE4Editor_CoreUObject!UStruct::SerializeBin() + 254 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\private\uobject\class.cpp:715]
UE4Editor_Engine!UBlueprintGeneratedClass::AddReferencedObjectsInUbergraphFrame() + 744 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\engine\private\blueprintgeneratedclass.cpp:700]
UE4Editor_CoreUObject!FArchiveRealtimeGC::ProcessObjectArray() + 7509 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\coreuobject\private\uobject\garbagecollection.cpp:707]
UE4Editor_CoreUObject!TGraphTask<FArchiveRealtimeGC::FGCTask>::ExecuteTask() + 453 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\public\async\taskgraphinterfaces.h:671]
UE4Editor_Core!FTaskThread::ProcessTasks() + 3125 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\async\taskgraph.cpp:428]
UE4Editor_Core!FTaskThread::ProcessTasksUntilQuit() + 77 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\async\taskgraph.cpp:271]
UE4Editor_Core!FTaskThread::Run() + 11 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\async\taskgraph.cpp:562]
UE4Editor_Core!FRunnableThreadWin::Run() + 102 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]
UE4Editor_Core!FRunnableThreadWin::GuardedRun() + 93 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.7\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26]
kernel32 + 88557 bytes
ntdll + 181569 bytes

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Fixed
ComponentGameplay - Blueprint
Affects Versions4.7.6
Target Fix4.9
Fix Commit2630376
Release Commit2633195
CreatedMay 14, 2015
ResolvedJul 23, 2015
UpdatedApr 27, 2018