Cloth rendering issue on triangles sharing kinematic attachments.

UE - Simulation - Physics - Character - Jul 29, 2020

All render vertices on any cloth triangle that contains one or two fixed vertex are set as fixed, whereas this should only be the case if all three vertices were fixed. ...

Moving assets in the Editor fails to fixup references causing the project to generate errors

Tools - Mar 30, 2020

Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...

Fixup Redirectors doesn't work in the editor

Tools - Apr 28, 2015

Fixup Redirectors doesn't work in the editor when showing redirectors using the filter and then choosing Fixup. The maps that reference the redirectors aren't being checked out and fixed. I'm just g ...

Ensure failure !bStaticCall nativizing blueprint calling blueprint function library function

UE - Gameplay - Blueprint Runtime - Jan 26, 2017

With exclusive nativization enabled and a blueprint calling a blueprint function library function a project fails to package due to an ensure failure !bStaticCall in BlueprintCompilerCppBackend.cpp. ...

Code review for potential fix for crash where Velocity contains NaN

UE - Gameplay - Aug 20, 2015

User crashed in the function "void UCharacterMovementComponent::PerformMovement(float DeltaSeconds)" due to a Velocity containing NaN. AnswerHub post details function calls that lead to where the N ...

Investigate/fix navmesh tiles disappearing randomly when level stream in.

UE - AI - Feb 14, 2020

See UDN description: https://udn.unrealengine.com/questions/554749/bug-navmesh-streaming-and-tile-corruption.html ...

Collections in content browser can't display native classes on 4.26

UE - Editor - Content Pipeline - Content Browser - Apr 12, 2021

The filter in UContentBrowserClassDataSource::CompileFilter does not work because the enumerated class objects are FName without path, while the filter item is name with path. [Image Removed] ...

Shadow doesn't update for a moving nanite mesh (fixed in 5.4)

UE - Graphics Features - Nanite - Mar 25, 2024

When a nanite mesh moves, the shadow does not. ...

Project cannot build in VS 2017 15.8+ if it uses std::make_shared with an over-aligned type

UE - Foundation - Core - Aug 30, 2018

Visual Studio 2017 15.8 includes a fix to properly handle std::make_shared used with over-aligned types. However, this is a breaking fix and requires the definition of one of two macros to either ac ...

MovieRender Pipeline Skips Output Frames during GC

UE - Anim - Sequencer - Jun 8, 2020

This is being seen in the wild... can release a temporary fix until 4.26 when we can change the headers and fix it for real. ...