Nanite Meshes aren't visible when using Texture Streaming Accuracy Viewmodes

UE - Graphics Features - Sep 2, 2020

Nanite Meshes are visible inside the view when using Texture Streaming Accuracy Viewmodes, they are not recoloured This includes all of the Optimization Viewmodes under Texture Streaming Accuracy:P ...

Tile Streamed in Temporarily has Stepping on Landscape

UE - Content Tools - Terrain - Landscape - Aug 28, 2020

This was reported in a UDN. Jeremy M. originally pointed out that the stepping looks to be caused by high res geometry sampling a low res heightmap. Additional observations:Loading the tile in w ...

ObjectScale node in the material editor does not work with decals

UE - Graphics Features - Aug 19, 2020

The ObjectScale node does not output the correct values in the material editor. This method works to tile images with a Surface Material Domain on a basic plane, but does not work when using it with ...

Merged actors cannnot cast shadows when source actors Cast Shadows is disabled

UE - World Creation - Worldbuilding Tools - Merge Actor - Aug 19, 2020

Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work

UE - Niagara - Cinematics - Aug 5, 2020

Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work The System component appears to only use the default value set in the System.  This issue does no ...

Fix primitive uniform buffer validation.

UE - Rendering Architecture - RHI - Jul 31, 2020

GPUScene primitive validation is currently busted and asserts. It looks like there are two problems: 1) NaN's in the entries can cause comparison issues, so a MemCmp would be better. 2) There's a ...

Fbx exporter does not support component overriden material color

UE - Editor - Content Pipeline - Import and Export - Jul 29, 2020

The fbx exporter should query component material override when exporting a level actor. ...

Fix up IOS errors calling UI API from non-UI threads

UE - Platform - Apple - Jul 27, 2020

Body Instance property changes made in construction scripts are not applied

UE - Simulation - Physics - Jul 17, 2020

7054614 was submitted to fix an issue with not being able to modify physics properties on instanced blueprints child components. This is related to [Link Removed]. This change causes BodyInstance t ...

Core Class Redirect doesn't work when converting from a C++ class to a BP

UE - Foundation - Core - Jul 16, 2020

The Export map will properly be updated but the creation of the import will fail with SourceIndex == INDEX_NONE From MarcA:  I'm guessing the import source index is always none for native classe ...