Adding Regular Expression information to the project.build.cs no longer works

UE - Foundation - Cpp Tools - UnrealBuildTool - Feb 23, 2022

This worked in previous releases, but changed around 4.27.2 and Early Access. This prevents users from using C# regular expressions. ...

Incorrect behavior when bAutoCalculateSpline==true for a Spline IK node

UE - Anim - Runtime - Anim Blueprints - Feb 23, 2022

UDN user reports that the calculations used to auto-calculate spline points is incorrect, solution supplied in the UDN ticket. ...

Linux crashes in the Project Browser without using the -nocef command

UE - Platform - Linux - Feb 22, 2022

When opening Unreal Editor on Linux, the Project Browser opens but is completely unresponsive. Shortly afterwards the editor will crash. If you use the -nocef command when opening the Editor, everyt ...

Key Interpolation method is not saved when calling the color picker by key editing of Sequencer

UE - Anim - Sequencer - Feb 17, 2022

The problem is that the interpolation method is not saved when editing the Vector Parameter. ...

Niagara : incorrect rendering on D3D12 when rendering a very large number of meshes

UE - Niagara - Feb 17, 2022

The input argument of DrawIndirect for Niagara meshes, which is made by ComputeShader, may be invalid. This problem does not appear with -onethread command line option. ...

Broken dither opacity on skeletal mesh

UE - Rendering Architecture - Materials - Feb 16, 2022

DefaultBackBufferPixelFormat 3 washes out slate + scene

UE - Editor - Feb 16, 2022

Typical view when setting is 4:[Link Removed] Problematic view when setting is 3:[Link Removed] ...

FFieldPath resolution doesn't handle redirection

UE - CoreTech - Feb 16, 2022

A licensee has found that redirectors don't apply to FFieldPath. We should integrate it with the following changes:It needs better error handling (looks like it could infinitely recurse),The change ...

The collision is wrong when the static mesh scale is set as negative value

UE - Simulation - Physics - Feb 15, 2022

I checked the c.haos code quickly. I think it caused by the function "bool FInitBodiesHelperBase::CreateShapesAndActors()". In this function, the CreateActor_AssumesLocked function will ignore the s ...

UE5 Main - Editor crashes when creating a Data Table

UE - Editor - Workflow Systems - Feb 14, 2022

Doesn't occur in UE5 Release or UE4.Can't attach logs/crash information I'm encountering an RHI crash within UE5 Main at the moment. This issue seems to be caused by a commit from last year that ...