[CrashReport] UE4Editor_CoreUObject!FMemoryWriter::Serialize() [memorywriter.h:42]

Core - Jul 24, 2017

This is a common cook crash affecting users in 4.16. It is possibly the same issue as described in UE-22912 for past engine versions. Source Context 33 virtual void Serialize(void* Data, ...

CheckLightmapUVs Not Registering Overlapping Lightmap UVs

Tools - Aug 4, 2017

CheckLightMapUVs is not registering overlapping Lightmap UVs when it is called. User Quote: "I have been working on an editor tool to diagnose some general asset problems and I noticed that in USt ...

[CrashReport] Cooking Commandlet crash - FAsyncWriteWorkerWithSplitExports::DoWork() [savepackage.cpp:563]

Core - Cooker - Aug 21, 2017

This is a regular commandlet crash that has occurred since at least 4.15. Source Context 543 IFileManager::Get().SetTimeStamp(*Filename, FinalTimeStamp); 544 } 545 } 54 ...

[CrashReport] UE4Editor_HotReload!`FHotReloadClassReinstancer::UpdateDefaultProperties'::`2'::FPropertyValueMemoryWriter::operator<<() [hotreloadclassreinstancer.cpp:372]

Core - Hot Reload - Sep 14, 2017

This is a common crash that has occurred for users since at least 4.16. User DescriptionsUsing the PIE i compiled some c++ then quit the PIE before the end of the compilation. Source Context 35 ...

[CrashReport] Assertion failed: NewWorld | UE4Editor_Engine!UEngine::LoadMap()

Gameplay - Nov 2, 2017

This is a common and longstanding crash that has occurred since at least 4.15. Originally this was being tracked under UE-27124 due to sharing the same callstack, but that had specific repro steps ...

Naming a Blueprint function/graph with non-ASCII characters can cause a build failure for certain cooked targets when Blueprint nativization is turned on.

Gameplay - Blueprint - Nov 2, 2017

This is due to the UCS-2 encoded UFunction object name passing through UHT into the boilerplate code (*.gen.cpp) that gets generated from the nativized Blueprint's C++ header file. The issue also o ...

[CrashReport] UE4Editor_Slate!FSlateApplication::DrawWindowAndChildren() [slateapplication.cpp:1213]

Tools - Slate - Nov 10, 2017

This is a longstanding crash that has occurred since at least 4.13. User DescriptionsI cant package. Every time I try, I get a crash and an "Unknown Error"failed to switch between game modes and af ...

Crash inside GetActualComponentTemplate() during Blueprint nativization.

Gameplay - Blueprint - Nov 15, 2017

Report of a crash happening during Blueprint nativization with a specific project, appears to be related to an inherited component template. Unable to repro in a new project. Callstack is noted. ...

Creating a new project from vault does not save the default location

Tools - May 12, 2015

When creating a new project from the vault, for example: Content Examples, each time it tries to save on the C:\My Documents\Unreal Projects instead of D:\Unreal Projects, even though that folder is ...

Losing focus of blueprint component viewport prevents W,E,R from changing transform widget

Gameplay - Blueprint - Aug 4, 2015

If focus is taken away from the viewport window in blueprints (LMB in the details pane, for instance), pressing W, E, or R to change the transform widget will not work until focus is returned. ...