Pawn blueprint crashes after being compiled 6 times

Development Programming & Scripting Blueprint
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1

hi My Pawn blueprint always crashes as long as I compile it 6 times, and every time i work with it the situation is exactly the same. As a result I have only 6 chances to compile my blueprint. That’s a weird problem. I have tried times but haven’t solve it. Here is the crash report:

link text

MachineId: 5012230E4474C18ADCEF54A95DF18D13
EpicAccountId:54bf08f19c784a3782edc966949d5638

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

UE4Editor_CoreUObject!HandlePlaceholderScriptRef() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:1416]
UE4Editor_CoreUObject!UStruct::SerializeExpr() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\public\uobject\scriptserialization.h:363]
UE4Editor_CoreUObject!UStruct::SerializeExpr() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\public\uobject\scriptserialization.h:301]
UE4Editor_CoreUObject!UStruct::Serialize() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:1278]
UE4Editor_CoreUObject!UFunction::Serialize() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4487]
UE4Editor_CoreUObject!FFindReferencersArchive::ResetPotentialReferencer() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\private\serialization\findreferencersarchive.cpp:88]
UE4Editor_UnrealEd!TFindObjectReferencers::TFindObjectReferencers() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\coreuobject\public\serialization\findobjectreferencers.h:48]
UE4Editor_UnrealEd!FReplaceReferenceHelper::FindAndReplaceReferences() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismetreinstanceutilities.cpp:65]
UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReplaceInstancesOfClass_Inner() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismetreinstanceutilities.cpp:1925]
UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReplaceInstancesOfClass() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismetreinstanceutilities.cpp:1464]
UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReinstanceInner() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismetreinstanceutilities.cpp:670]
UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReinstanceObjects() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismetreinstanceutilities.cpp:901]
UE4Editor_UnrealEd!FKismetEditorUtilities::CompileBlueprint() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\unrealed\private\kismet2\kismet2.cpp:825]
UE4Editor_Kismet!FBlueprintEditor::Compile() [d:\build++ue4+release-4.14+compile\sync\engine\source\editor\kismet\private\blueprinteditor.cpp:3202]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper __cdecl(void)>::Execute() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:318]
UE4Editor_Kismet!TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl(void)>::ExecuteIfSafe() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:424]
UE4Editor_Slate!FUICommandList::ExecuteAction() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\commands\uicommandlist.cpp:92]
UE4Editor_Slate!SToolBarButtonBlock::OnClicked() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\multibox\stoolbarbuttonblock.cpp:300]
UE4Editor_Slate!TMemberFunctionCaller::operator()<>() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstanceinterface.h:161]
UE4Editor_Slate!TTupleImpl >::ApplyAfter >() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\tuple.h:116]
UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,0,FReply __cdecl(void)>::Execute() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:318]
UE4Editor_Slate!TBaseDelegate::Execute() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:522]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:275]
UE4Editor_Slate!::operator()() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5010]
UE4Editor_Slate!FEventRouter::Route >() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:215]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:4999]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5462]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5439]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:1652]
UE4Editor_Core!FWindowsApplication::DeferMessage() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:2071]
UE4Editor_Core!FWindowsApplication::ProcessMessage() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:814]
UE4Editor_Core!FWindowsApplication::AppWndProc() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsapplication.cpp:678]
user32
user32
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\core\private\windows\windowsplatformmisc.cpp:951]
UE4Editor!FEngineLoop::Tick() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2811]
UE4Editor!GuardedMain() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\launch.cpp:152]
UE4Editor!GuardedMainWrapper() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build++ue4+release-4.14+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:202]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264]
kernel32
ntdll

Highly appreciate if anyone could help.

2

Hi,

I looked into the crash you are experiencing and we just fixed what we believe is the cause of this callstack. It’s logged as JIRA UE-38486. The Target version for the fix is 4.15.

Once the official 4.15 releases, please test the issue there and let us know if it is still crashing.

Thanks,

TJ