The crash appear only if i call non static method from c++ class on blueprint widget on press button.
How to reproduce.
- Create an widget append an button with click event and call an non static method from an c++ class
- Press Play button on editor after press button on widget
- Close Game and pres again Play after press button on widget and will receive crash.
c++ functions
- create an instance
UFUNCTION(BlueprintCallable, Category = “Network”)
static UTest* GetTCPTestClient() {
static UTest* INSTANCE = NewObject();
return INSTANCE;
} - call after get an instance
UFUNCTION(BlueprintCallable, Category = “TCP Functions”)
void Test();
LoginId:10225da4422b82ffa0cd5d809fed639a
EpicAccountId:7e585248ee4c4b188e6247cd05bdff5e
Access violation - code c0000005 (first/second chance not available)
UE4Editor_Core!TGeneratedTextData::`vftable’()
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:773]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2330]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:940]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1031]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4861]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1480]
UE4Editor_UMG!TMulticastScriptDelegate::ProcessMulticastDelegate() [d:\build++ue4\sync\engine\source\runtime\core\public\uobject\scriptdelegates.h:488]
UE4Editor_UMG!UButton::SlateHandleClicked() [d:\build++ue4\sync\engine\source\runtime\umg\private\components\button.cpp:189]
UE4Editor_UMG!TBaseUObjectMethodDelegateInstance<0,UButton,FReply __cdecl(void)>::Execute() [d:\build++ue4\sync\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:617]
UE4Editor_Slate!SButton::OnMouseButtonUp() [d:\build++ue4\sync\engine\source\runtime\slate\private\widgets\input\sbutton.cpp:290]
UE4Editor_Slate!FEventRouter::Route >() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:270]
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5528]
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6087]
UE4Editor_Slate!FSlateApplication::OnMouseUp() [d:\build++ue4\sync\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:6060]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1831]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2281]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:929]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:766]
user32
user32
UE4Editor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [d:\build++ue4\sync\engine\source\runtime\applicationcore\private\windows\windowsplatformapplicationmisc.cpp:130]
UE4Editor!FEngineLoop::Tick() [d:\build++ue4\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3615]
UE4Editor!GuardedMain() [d:\build++ue4\sync\engine\source\runtime\launch\private\launch.cpp:174]
UE4Editor!GuardedMainWrapper() [d:\build++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
UE4Editor!WinMain() [d:\build++ue4\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:276]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283]
kernel32
ntdll