Skeletal Mesh Customizable Object Node does not warn of changes to mesh sections.

UE - Anim - Mutable - Nov 12, 2024

When reimporting meshes with changes to their material sections, specifically additions, there is no indication that there will be an issue on output of a generated mesh. Ideally, we can watch for a ...

LoadMapMisc LLM category contains Static Mesh allocations

UE - Rendering Architecture - Nov 12, 2024

UInstancedStaticMeshComponent::CreateSceneProxy() is missing a LLM_SCOPE(ELLMTag::InstancedMesh);  and during level loading allocations for it appear in LoadMapMisc instead of InstancedMesh. Addi ...

Validity of a workaround for an issue with MobileRenderer where RecieveShadow can't be rendered properly

UE - Platform - Mobile - Nov 11, 2024

Dynamic instancing is likely causing an issue where meshes that need shadows are getting combined with meshes that do not need shadows causing missing shadows. Tests were done with CSMs. Reproducti ...

Iris - Non-replicated properties of FInstancedStruct reset after replication

UE - Networking - Iris - Nov 8, 2024

This issue only occurs with Iris enabled. ...

External objects added through customization have incorrect behaviour with EditConditionHides

UE - Editor - Workflow Systems - Nov 7, 2024

Copy-paste the TestCode.h and TestCode.cpp into a module Activate the customization in the StartupModule() function ``` FPropertyEditorModule& PropertyModule = FModuleManager::LoadModuleChecked<FPro ...

[Interchange] Bone name space are replace with underscore, legacy fbx rename with dash

UE - Editor - Content Pipeline - Import and Export - Nov 6, 2024

This bug is critical since it can broke bone name reference between [animations, physics asset, curves, ...] and skeletal mesh bone name ...

Interchange: Forcing "Bind Pose Time Zero" to true doesn't always give good result

UE - Editor - Content Pipeline - Import and Export - Nov 6, 2024

When using the legacy fbx importer with time zero option to true the skinning is good. So its a regression. Would be awesome if it can be fix in 5.5.1 ...

Safezones on Android not set properly when orientation changes

UE - Platform - Mobile - Nov 5, 2024

Looks like the resize that does the safe zone update is done before the orientation is updated.  I suggested swapping the order to licensee in the UDN ticket and it worked for him.  This should be t ...

ISM + WPO = broken motion vectors?

UE - Graphics Features - Nov 5, 2024

Instanced Static Meshes will have incorrect velocity if a Material uses World Position Offset. Fixed WPO in a material causes significant velocity on the ISM. This was also replicated in //UE5/Rele ...

Breaking a level instance can not remove the level instance from world

UE - World Creation - Worldbuilding Tools - Level Instances - Nov 5, 2024

Currently there is no stable way to break level instances ...