The Editor will crash while opening a project that had previously successfully had a Live Coding patch applied, and then was closed. The `LiveCodingConsole.exe` process continues to run after both the Live Coding console window and the Editor have been closed, and this still-running process apparently interferes with the Editor opening. Making sure that the still-running `LiveCodingConsole.exe` process is ended before opening the project again in the Editor allows the Editor to open the project successfully.
REGRESSION:
No. Live Coding is a new feature in 4.22.
RESULT:
The Editor crashes due to an unhandled exception while opening shortly after the Live Coding Console window appears.
EXPECTED:
The Editor opens the project successfully.
WORKAROUND:
Make sure the still-running `LiveCodingConsole.exe` process is ended before re-opening the project.
Unhandled exception UE4Editor_LiveCoding!ClientUserCommandThread::EnableModule() [d:\main-builds\stream\engine\source\developer\windows\livecoding\private\external\lc_clientusercommandthread.cpp:429] UE4Editor_LiveCoding!FLiveCodingModule::ConfigureModule() [d:\main-builds\stream\engine\source\developer\windows\livecoding\private\livecodingmodule.cpp:307] UE4Editor_LiveCoding!FLiveCodingModule::StartLiveCoding() [d:\main-builds\stream\engine\source\developer\windows\livecoding\private\livecodingmodule.cpp:244] UE4Editor_LiveCoding!FLiveCodingModule::StartupModule() [d:\main-builds\stream\engine\source\developer\windows\livecoding\private\livecodingmodule.cpp:76] UE4Editor_Core!FModuleManager::LoadModuleWithFailureReason() [d:\main-builds\stream\engine\source\runtime\core\private\modules\modulemanager.cpp:547] UE4Editor_Core!FModuleManager::LoadModule() [d:\main-builds\stream\engine\source\runtime\core\private\modules\modulemanager.cpp:367] UE4Editor_Engine!UEngine::Init() [d:\main-builds\stream\engine\source\runtime\engine\private\unrealengine.cpp:1571] UE4Editor_UnrealEd!UEditorEngine::InitEditor() [d:\main-builds\stream\engine\source\editor\unrealed\private\editorengine.cpp:587] UE4Editor_UnrealEd!UEditorEngine::Init() [d:\main-builds\stream\engine\source\editor\unrealed\private\editorengine.cpp:824] UE4Editor_UnrealEd!UUnrealEdEngine::Init() [d:\main-builds\stream\engine\source\editor\unrealed\private\unrealedengine.cpp:76] UE4Editor!FEngineLoop::Init() [d:\main-builds\stream\engine\source\runtime\launch\private\launchengineloop.cpp:3301] UE4Editor_UnrealEd!EditorInit() [d:\main-builds\stream\engine\source\editor\unrealed\private\unrealedglobals.cpp:76] UE4Editor!GuardedMain() [d:\main-builds\stream\engine\source\runtime\launch\private\launch.cpp:154] UE4Editor!GuardedMainWrapper() [d:\main-builds\stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:145] UE4Editor!WinMain() [d:\main-builds\stream\engine\source\runtime\launch\private\windows\launchwindows.cpp:275] UE4Editor!__scrt_common_main_seh() [d:\agent\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288] kernel32 ntdll
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-72543 in the post.
| 2 |
| Component | UE - Foundation - Cpp Tools - Live Coding |
|---|---|
| Affects Versions | 4.22, 4.23 |
| Target Fix | 4.23 |
| Created | Apr 9, 2019 |
|---|---|
| Resolved | May 23, 2019 |
| Updated | Jul 1, 2019 |