Skeletal Meshes with imported LODs will use the highest LOD when generating Nanite, rather than LOD0

UE - Graphics Features - Nanite - Jan 14, 2025

In the SkeletalMeshBuilder, Nanite is generated when enabled regardless of the LOD being requested. Since the Nanite enablement parameter is set on all LODs in USkeletalMesh::BuildLODModel and LODs ...

FDateTime instances are reset to default on hot reload

UE - Gameplay - Blueprint - May 31, 2017

If an FDateTime variable is created in code and has a default value set in blueprints, any instance that is set to the blueprint default value changes to the code default on hot reload. This includ ...

[CrashReport] UE4Editor_Engine!USkeleton::GetMeshLinkupIndex() [skeleton.cpp:420]

OLD - Anim - Jul 19, 2017

This is a common crash affecting users in 4.16, unfortunately they have not provided any additional information. Source Context 406 if ( IndexPtr == NULL ) 407 { 408 L ...

[CrashReport] UE4Editor_Slate!FDelegateBase::Unbind()

UE - Editor - UI Systems - Slate - Jul 24, 2017

This is a common crash affecting users in 4.16. User Descriptionstrying to import a texture D: Source Context 137 /** 138 * Unbinds this delegate 139 */ 140 ...

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRenderPipelineDesc::CreatePipelineStateForBoundShaderState()

UE - Graphics Features - Aug 10, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: SEGV_MAPERR at 0x3 Most recent us ...

Undoing the pasting of a copied node from the Blueprint Diff tools causes an access violation crash

UE - Gameplay - Blueprint Editor - Aug 24, 2017

The editor crashes with an Access Violation if a node that was copied and pasted from the Blueprint Diff tools is removed via an undo. Regression?: No This issue also occurred in 4.16 Branches tes ...

Planes have a Mesh Distance field exceeds the size of the original mesh

UE - Graphics Features - Sep 20, 2017

Planes have a Mesh Distance field exceeds the size of the original mesh when the value is set to 2. This behavior does not seem intended as the cube does not experience this issue when the value is ...

[CrashReport] Fatal error: Cast of nullptr to Object failed

UE - Gameplay - Oct 5, 2017

This is a common and longstanding crash that has affected many users since at least 4.11. Source context not available (error in user code?). User DescriptionsI was duplicating a Set function in c ...

[CrashReport] UE4Editor_DetailCustomizations!FBrushDetails::OnClassPicked() [brushdetails.cpp:306]

Tools - Nov 10, 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 Context296 // make sure the brushes are re ...

Camera rotation stops at game border when using Begin play node

Tools - Jan 8, 2018

There is an issue where Camera rotation stops at game window border when using Begin play node with the mouse. This issue does not happen if you don't use the begin play node with the Set show mouse ...