[CrashReport] UE4Editor_Engine!FShaderCompilingManager::LaunchWorker() [shadercompiler.cpp:1573]

UE - Graphics Features - Aug 21, 2017

This is a common and longstanding crash that has occurred since at least 4.9. The issue appears to be due to missing ShaderCompileWorker.exe in binaries, but many of these crashes occur in the vani ...

Build Warning when HotReloading - LogUObjectGlobals:Warning: Guid is already used by

UE - Gameplay - Blueprint - Sep 12, 2016

Changing class code causes class instance placed in the viewport to produce the warning message shown below upon hot reload. Also reported that callstack occurs but does not crash the editor. The ...

[CrashReport] UE4Editor_CoreUObject!FUObjectArray::AllocateSerialNumber() [uobjectarray.cpp:307]

UE - Editor - Content Pipeline - Import and Export - Sep 20, 2017

This is a somewhat common crash in 4.17. Users have not provided any descriptions of their actions when the crash occurred. Source Context 304 int32 FUObjectArray::AllocateSerialNumber(in ...

[CrashReport] UE4Editor_Engine!FSkeletalMeshObject::UpdateMinDesiredLODLevel() [skeletalrender.cpp:81]

OLD - Anim - Nov 2, 2017

This is a somewhat common crash that has occurred since at least the 4.16 release. User DescriptionsReimported a skeletal mesh from an FBX file.reimported static mesh Source Context 70 v ...

Crash when Previewing specific LODs within Static Mesh Editor at certain Screen Resolutions

Tools - Oct 27, 2016

A crash occurs when attempting to preview specific LODs when the monitor resolution forces the menu to be expanded when selecting an LOD. This Jira was created from CrashReports submitted by the pu ...

[CrashReport] UE4Editor_LandscapeEditor!ULandscapeEditorObject::PostEditChangeProperty() [landscapeeditorobject.cpp:158]

UE - LD & Modeling - Terrain - Landscape - Oct 27, 2017

This is a trending crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 144 { 145 NewLandscap ...

[CrashReport] Assertion failed: IsValid() - UE4Editor_SlateCore!FWeakWidgetPath::GetLastWidget()

UE - Editor - UI Systems - Slate - Jun 22, 2017

This is a common crash occurring among users in the 4.16 release. Users have not provided any descriptions when they crash, so additional information is not currently available. log file attache ...

[CrashReport] UE4Editor_MeshPaint!FMeshPaintGeometryAdapterForStaticMeshes::OnRemoved() [meshpaintstaticmeshadapter.cpp:222]

Tools - Nov 21, 2017

This is an infrequent crash in the 4.18 release. Users have not provided any description of their actions when the crash occurred. Source Context 210 if (StaticMeshReferencers) 211 ...

Paper2D performance regression due to TArray resizing

UE - Graphics Features - Aug 16, 2019

We've noticed after upgrading our heavy Paper2D project to 4.22 that tilemap performance has been massively degraded compared to previous versions. After some digging we found out that it's due to a ...

It is possible to rename a Function Output the same as a Local Variable, which causes a compile error

UE - Gameplay - Blueprint - Apr 15, 2015

It is possible to rename a Function Output the same as a Local Variable, which causes a compile error: Error Internal Compiler Error: Tried to create a property TestVar in scope NewFunction_0, but ...