Unreal Engine Issues and Bug Tracker (UE-59040)

Description

Calling a RPC function with a TSet or TMap parameter on a client causes the editor to crash.

Regression?: No
This also occurs in 4.18

Steps to Reproduce

Download the attached project
Open the project and start PIE with 2 players
On the client, press the H key
Result: The client crashes due to calling a RPC function with a TSet parameter
Expected: The function runs successfully and no crash occurs

Callstack

Fatal error: [File:D:\Build\++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\PropertySet.cpp] [Line: 391] Deprecated code path

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:419]
UE4Editor_CoreUObject!USetProperty::NetSerializeItem() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\propertyset.cpp:392]
UE4Editor_Engine!FRepLayout::SerializeProperties_r() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\replayout.cpp:3216]
UE4Editor_Engine!FRepLayout::SendPropertiesForRPC() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\replayout.cpp:3296]
UE4Editor_Engine!UNetDriver::InternalProcessRemoteFunction() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\networkdriver.cpp:1554]
UE4Editor_OnlineSubsystemUtils!UIpNetDriver::ProcessRemoteFunction() [d:\build\++ue4+release-4.19+compile\sync\engine\plugins\online\onlinesubsystemutils\source\onlinesubsystemutils\private\ipnetdriver.cpp:605]
UE4Editor_Engine!AActor::CallRemoteFunction() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:3867]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:749]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:985]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:887]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:985]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\class.cpp:4551]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1345]
UE4Editor_Engine!AActor::ProcessEvent() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:687]
UE4Editor_Engine!FInputActionHandlerDynamicSignature::Execute() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\classes\components\inputcomponent.h:108]
UE4Editor_Engine!FInputActionUnifiedDelegate::Execute() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\classes\components\inputcomponent.h:212]
UE4Editor_Engine!UPlayerInput::ProcessInputStack() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\userinterface\playerinput.cpp:1225]
UE4Editor_Engine!APlayerController::ProcessPlayerInput() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\playercontroller.cpp:2471]
UE4Editor_Engine!APlayerController::TickPlayerInput() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\playercontroller.cpp:4232]
UE4Editor_Engine!APlayerController::PlayerTick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\playercontroller.cpp:2135]
UE4Editor_Engine!APlayerController::TickActor() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\playercontroller.cpp:4327]
UE4Editor_Engine!FActorTickFunction::ExecuteTick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\actor.cpp:134]
UE4Editor_Engine!FTickFunctionTask::DoTask() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\ticktaskmanager.cpp:273]
UE4Editor_Engine!TGraphTask<FTickFunctionTask>::ExecuteTask() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:829]
UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:665]
UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:574]
UE4Editor_Core!FTaskGraphImplementation::WaitUntilTasksComplete() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:1355]
UE4Editor_Engine!FTickTaskSequencer::ReleaseTickGroup() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\ticktaskmanager.cpp:542]
UE4Editor_Engine!FTickTaskManager::RunTickGroup() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\ticktaskmanager.cpp:1449]
UE4Editor_Engine!UWorld::RunTickGroup() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\leveltick.cpp:770]
UE4Editor_Engine!UWorld::Tick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\engine\private\leveltick.cpp:1429]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:1693]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:401]
UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3339]
UE4Editor!GuardedMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\launch.cpp:166]
UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:144]
UE4Editor!WinMain() [d:\build\++ue4+release-4.19+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:223]
UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
kernel32
ntdll

Community References

Fix UE-51650

I am not able to find world outliner how to enable it?

Delay nodes occasionally don't fire the "Completed" output in a nativized build

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

How can i modify the param name in EQS node

How to achieve HLSL Multiple Render Target in Material blueprints?

Trying to launch , erorr,dll missing

I have a problem with the UEFN program, which is that every time I use the scapeland tool, the program closes automatically I need help please

Bullet replication problem. The players sees each other but does not see the bullet

Error UE5 5.0.3

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-59040 in the post.

2	Login to Vote

Fixed

Component	UE - Networking
Affects Versions	4.18, 4.19, 4.20
Target Fix	4.20

Fix Commit	4158758
Main Commit	4202609
Release Commit	4158758

Created	May 11, 2018
Resolved	Jun 25, 2018
Updated	Jul 12, 2018

View Jira Issue

UE-59040

Crash when calling a RPC function with a TSet or TMap parameter on a client

Crash when calling a RPC function with a TSet or TMap parameter on a client

Have Comments or More Details?