I’m getting this error when a client calls “Is Player in Session”. I’m using it to switch to a lobby widget and if not load the normal main menu. I’m using 4.18.3.
[2018.04.14-23.01.35:206][114]LogWindows: Error: === Critical error: ===
[2018.04.14-23.01.35:206][114]LogWindows: Error:
[2018.04.14-23.01.35:206][114]LogWindows: Error: Fatal error!
[2018.04.14-23.01.35:206][114]LogWindows: Error:
[2018.04.14-23.01.35:206][114]LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000000
[2018.04.14-23.01.35:206][114]LogWindows: Error:
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000EA740716 ProjDelt.exe!IsPlayerInSessionImpl() [D:\Program Files\Epic Games\UE_4.18\engine\plugins\online\onlinesubsystem\source\private\onlinesubsystem.cpp:105]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000EA85F195 ProjDelt.exe!UAdvancedSessionsLibrary::IsPlayerInSession() [D:\github\projcontdev\plugins\advancedsessions\source\advancedsessions\private\advancedsessionslibrary.cpp:154]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000EA84D5AE ProjDelt.exe!UAdvancedSessionsLibrary::execIsPlayerInSession() ]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E72E9404 ProjDelt.exe!UFunction::Invoke() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\class.cpp:4542]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74A3644 ProjDelt.exe!UObject::CallFunction() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:732]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74B8109 ProjDelt.exe!UObject::ProcessContextOpcode() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:2167]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74BA2C1 ProjDelt.exe!UObject::ProcessInternal() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74A4039 ProjDelt.exe!UObject::CallFunction() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:856]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74BA2C1 ProjDelt.exe!UObject::ProcessInternal() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74A4039 ProjDelt.exe!UObject::CallFunction() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:856]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74BA2C1 ProjDelt.exe!UObject::ProcessInternal() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74A4039 ProjDelt.exe!UObject::CallFunction() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:856]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74BA2C1 ProjDelt.exe!UObject::ProcessInternal() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:954]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E72E9404 ProjDelt.exe!UFunction::Invoke() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\class.cpp:4542]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E74B96F2 ProjDelt.exe!UObject::ProcessEvent() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1314]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E8F08381 ProjDelt.exe!AActor::ProcessEvent() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\actor.cpp:693]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E8EDB438 ProjDelt.exe!AActor::BeginPlay() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\actor.cpp:3192]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E98C4954 ProjDelt.exe!APlayerController::BeginPlay() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\playercontroller.cpp:1441]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E8EE3E6B ProjDelt.exe!AActor::DispatchBeginPlay() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\actor.cpp:3160]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E9D495BE ProjDelt.exe!AWorldSettings::NotifyBeginPlay() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\worldsettings.cpp:187]
[2018.04.14-23.01.35:206][114]LogWindows: Error: [Callstack] 0x00000000E9467465 ProjDelt.exe!AGameState::OnRep_MatchState() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\gamestate.cpp:143]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E72E9404 ProjDelt.exe!UFunction::Invoke() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\class.cpp:4542]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E74B96F2 ProjDelt.exe!UObject::ProcessEvent() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1314]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E8F08381 ProjDelt.exe!AActor::ProcessEvent() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\actor.cpp:693]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E992F18B ProjDelt.exe!FRepLayout::CallRepNotifies() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\replayout.cpp:2407]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E932A9F8 ProjDelt.exe!FObjectReplicator::CallRepNotifies() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datareplication.cpp:1474]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E934C812 ProjDelt.exe!FObjectReplicator::PostReceivedBunch() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datareplication.cpp:1032]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E934FC88 ProjDelt.exe!UActorChannel::ProcessBunch() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datachannel.cpp:2297]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E9356F3C ProjDelt.exe!UActorChannel::ReceivedBunch() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datachannel.cpp:2139]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E935ADBC ProjDelt.exe!UChannel::ReceivedNextBunch() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datachannel.cpp:665]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E935BC51 ProjDelt.exe!UChannel::ReceivedRawBunch() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\datachannel.cpp:388]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E96F29C9 ProjDelt.exe!UNetConnection::ReceivedPacket() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private
etconnection.cpp:1319]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E96F3D51 ProjDelt.exe!UNetConnection::ReceivedRawPacket() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private
etconnection.cpp:728]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000EA7EF7E2 ProjDelt.exe!UIpNetDriver::TickDispatch() [D:\Program Files\Epic Games\UE_4.18\engine\plugins\online\onlinesubsystemutils\source\onlinesubsystemutils\private\ipnetdriver.cpp:455]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E96D17BD ProjDelt.exe!TBaseUObjectMethodDelegateInstance<0,UNetDriver,void __cdecl(float)>::ExecuteIfSafe() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:858]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E76C2DA6 ProjDelt.exe!TBaseMulticastDelegate<void,float>::Broadcast() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\core\public\delegates\delegatesignatureimpl.inl:937]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E95FC2D8 ProjDelt.exe!UWorld::Tick() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\leveltick.cpp:1296]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E94264A1 ProjDelt.exe!UGameEngine::Tick() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\engine\private\gameengine.cpp:1221]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E6D8DDE7 ProjDelt.exe!FEngineLoop::Tick() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\launch\private\launchengineloop.cpp:3296]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E6D9D8CC ProjDelt.exe!GuardedMain() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\launch\private\launch.cpp:166]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E6D9D93A ProjDelt.exe!GuardedMainWrapper() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\launch\private\windows\launchwindows.cpp:134]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000E6DA9ED2 ProjDelt.exe!WinMain() [D:\Program Files\Epic Games\UE_4.18\engine\source\runtime\launch\private\windows\launchwindows.cpp:210]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000EAA1E92E ProjDelt.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:283]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x0000000076AF1FE4 KERNEL32.DLL!UnknownFunction ]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000795CF061 ntdll.dll!UnknownFunction ]
[2018.04.14-23.01.35:207][114]LogWindows: Error: [Callstack] 0x00000000795CF061 ntdll.dll!UnknownFunction ]
[2018.04.14-23.01.35:207][114]LogWindows: Error:
[2018.04.14-23.01.35:221][114]LogExit: Executing StaticShutdownAfterError