Unreal Engine Issues and Bug Tracker (UE-37360)

Description

Crash occurs when debugging blueprints when in a networked editor session.

Steps to Reproduce

Open Content Examples in editor.
Open the level Network_Features.
Open the blueprint BP_GameMode_Network.
Add a breakpoint to the Event OnPostLogin node.
Back in the level editor, click the drop down next to Play.
Set Number of Players to 2.
Play in New Editor Window.
When the breakpoint is triggered (should be immediate), repeatedly step through everything.

RESULT:

Crash will eventually occur.

Callstack

UE4Editor_UnrealEd!UEditorEngine::CreatePIEGameInstance() playlevel.cpp:3338 
UE4Editor_UnrealEd!UEditorEngine::SpawnIntraProcessPIEWorlds() playlevel.cpp:2579 
UE4Editor_UnrealEd!UEditorEngine::PlayInEditor() playlevel.cpp:2468 
UE4Editor_UnrealEd!UEditorEngine::StartQueuedPlayMapRequest() playlevel.cpp:1145 
UE4Editor_UnrealEd!UEditorEngine::Tick() editorengine.cpp:1310 
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() unrealedengine.cpp:371 
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2859 
UE4Editor!GuardedMain() launch.cpp:152 
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 
UE4Editor!WinMain() launchwindows.cpp:202 
UE4Editor!__scrt_common_main_seh() exe_common.inl:264 
kernel32!<Unknown> 
ntdll!<Unknown>

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Fixed

Component	Tools
Affects Versions	4.14
Target Fix	4.14

Fix Commit	3164737
Release Commit	3164737

Created	Oct 14, 2016
Resolved	Oct 17, 2016
Updated	May 2, 2018

UE-37360

Crash debugging blueprints in a networked game session

Crash debugging blueprints in a networked game session

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