Hello
Recently, a Fatal error occurred during the operation of Unreal Engine 4.25.3.
I’ve tried many things, but I haven’t been able to figure out the cause, and I’m asking this question.
Editor doesn’t have the same problem with any attempt.
A ‘Fatal error’ occurs during play only when playing with a packaged executable.
At first, I thought it was a problem that was caused by approaching nullptr.
Several tests have shown that this is not a script issue.
I’m guessing it’s because the data in memory is disappearing, but I’m not sure.
If the same operation is performed on the next play, it will not occur at the same time.
No matter how many times you operate or how you do it.
A non-regular error that occurs at some point during the play when you suddenly try to access information on an object in the game.
This is an issue that has never happened in previous versions (4.23-24), so it’s been difficult.
If anyone has experienced a similar problem, please reply.
Engine version: 4.25.3
Packaging information:
Error content:
[2020.10.05-06.57.59:990][618]LogWindows: Error: === Critical error: ===
[2020.10.05-06.57.59:990][618]LogWindows: Error:
[2020.10.05-06.57.59:990][618]LogWindows: Error: Fatal error!
[2020.10.05-06.57.59:990][618]LogWindows: Error:
[2020.10.05-06.57.59:990][618]LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffff
[2020.10.05-06.57.59:990][618]LogWindows: Error:
[2020.10.05-06.57.59:990][618]LogWindows: Error: [Callstack] 0x00007ff894de1480 VCRUNTIME140.dll!UnknownFunction []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff68109611f QooboSimulator.exe!IQooboPlayerControllerInterface::Execute_SpawnFurniture() [C:\Project\QooboSimulator\Intermediate\Build\Win64\UE4\Inc\QooboSimulator\QooboPlayerControllerInterface.gen.cpp:969]
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681061107 QooboSimulator.exe!UFurnitureWindowButton::ContentButtonOnPressed() [C:\Project\QooboSimulator\Source\QooboSimulator\UI\InGame\Window\FurnitureWindowButton.cpp:53]
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff68167d239 QooboSimulator.exe!UFunction::Invoke() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6818a4be6 QooboSimulator.exe!UObject::ProcessEvent() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6804b7db0 QooboSimulator.exe!TMulticastScriptDelegate::ProcessMulticastDelegate() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6837733cd QooboSimulator.exe!?ExecuteIfSafe@?$TBaseUObjectMethodDelegateInstance@$0A@VUButton@@$$A6AXXZ$$V@@UEBA_NXZ() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681c18e85 QooboSimulator.exe!SButton::OnMouseButtonDown() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681ab4b43 QooboSimulator.exe!FLogTrace::OutputLogMessage() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681b147c3 QooboSimulator.exe!FSlateApplication::RoutePointerDownEvent() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681b0321d QooboSimulator.exe!FSlateApplication::ProcessMouseButtonDownEvent() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681af9048 QooboSimulator.exe!FSlateApplication::OnMouseDown() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681982f40 QooboSimulator.exe!FWindowsApplication::ProcessDeferredMessage() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff681970d74 QooboSimulator.exe!FWindowsApplication::DeferMessage() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6819853c7 QooboSimulator.exe!FWindowsApplication::ProcessMessage() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff68196c999 QooboSimulator.exe!FWindowsApplication::AppWndProc() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff8ac2de858 USER32.dll!UnknownFunction []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff8ac2de299 USER32.dll!UnknownFunction []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6819867d4 QooboSimulator.exe!FWindowsPlatformApplicationMisc::PumpMessages() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff680486742 QooboSimulator.exe!FEngineLoop::Tick() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff680499b6c QooboSimulator.exe!GuardedMain() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff680499c2a QooboSimulator.exe!GuardedMainWrapper() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff6804aaec0 QooboSimulator.exe!WinMain() []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff685b94d1e QooboSimulator.exe!__scrt_common_main_seh() [D:\agent\_work\9\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff8ad2a6fd4 KERNEL32.DLL!UnknownFunction []
[2020.10.05-06.57.59:991][618]LogWindows: Error: [Callstack] 0x00007ff8adb3cec1 ntdll.dll!UnknownFunction []
[2020.10.05-06.57.59:991][618]LogWindows: Error:
[2020.10.05-06.58.00:011][618]LogExit: Executing StaticShutdownAfterError
[2020.10.05-06.58.00:094][618]LogWindows: FPlatformMisc::RequestExit(1)
[2020.10.05-06.58.00:094][618]LogCore: Engine exit requested (reason: Win RequestExit)
[2020.10.05-06.58.00:105][618]Log file closed, 10/05/20 15:58:00