Unreal Engine Issues

Errors occur when moving duplicated Material Instances

Licensees have reported that two UMaterialInterfaceEditorOnlyData objects are being created for duplicated assets, causing a name conflict when renaming. ...

Editor Crashes when copy/pasting an emitter in the Niagara timeline

When creating the emitter's track widget we search for the stack view model's root entry, but the stack view model pointer is null, so we crash.  ...

Calling RemoveAllAnchors function on a non-clustered geometry collection falls extremely fast

Non-clustered geometry collections applied RemoveAllAnchors are not put into FPBDRigidsSOAs::DynamicGeometryCollectionArray, so acceleration is not reset every tick and they fall super fast. The fol ...

NiagaraEditor timeline folders are not saved correctly

It works correctly in 5.0.3. ...

Index of Texture Cube Array cannot be specified with VisualizeTexture on D3D11

Licensees have reported that they always see Index 0 for Texture Cube Arrays. Looking at the RenderDoc, Index1 has a white texture but it's not actually visible.[Image Removed] ...

Editable FBox properties are not saved

FBox properties in the editor are not being saved.  This appears to be a regression caused by CL# 21566516 that was missed due to there being no editable box types in the Epic codebase. ...

TSR ghosting when see through translucent wall

see through a translucent material will cause ghosting  This issue did not occur in 5.0, it occurs when using TSR on UE 5.1 or later. ...

Syncing issue when stopping and blending out a non-looping montage to an anim graph

When syncing from a non-repeating montage that is blending out to an anim graph, the anim montage is marked as a follower due to having its PrevMaker as an AnimBoundary(-1), furthermore in this case ...

Spotlight is rendered in different locations in each eye w. Vulkan on Quest

Nodes to the right of an Abort Both node in a Behavior Tree appears to still receive a tick

This is a regression. Tested in //UE5/Release-5.0 CL20979098 Behavior Tree appears to tick nodes to the right of an aborted node that is set to abort Both. Those nodes are not executed, but visuall ...