Performance Regression in Forward Rendering with most settings off.

UE - Rendering Architecture - RHI - Mar 12, 2020

When rendering with forward rendering, the ComposeSeparateTranslucency call is called even when separate translucency is not enabled. Additionally, Downsample.HalfResolutionSceenColor gets called ev ...

Material slot names are lost when merging SkeletalMeshes

UE - World Creation - Worldbuilding Tools - Merge Actor - Mar 12, 2020

When we use the FSkeletalMeshMerge utility, material slot names are lost on the resulting mesh. We should at least transfer the first slot name found for a given material. ...

Niagara Remove Pin Feature now deletes the variable completely from the Parameters Pane

UE - Niagara - Mar 12, 2020

This is a regression from 4.24.3 (CL-11590370). Removing a pin on a Niagara Module Script parameter will removed the variable as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) ...

Landscape Tool crashes on Layer Import

UE - LD & Modeling - Terrain - Landscape - Mar 12, 2020

The heightmap and weightmaps were created using Terresculptor, and exported in the correct format. If you import everything except the layermaps, the landscape is generated and the layers can be pai ...

Sublevels Move To New Subfolders Automatically When New Ones Are Made

Tools - Mar 11, 2020

When adding a new subfolder in the Levels window all the sublevels in that parent folder move to the new sublevel. Currently you have to create all the sub folders then move the sublevels to keep th ...

Creating multiple Scalar Parameter nodes with a different values will crash the editor

UE - Rendering Architecture - Materials - Mar 11, 2020

This is a regression from 4.24.3 CL 11590370 This was discovered when ad-hoc from home I ran into this by running this set up https://docs.unrealengine.com/en-US/Engine/Rendering/Materials/HowTo/Cle ...

Dragging more than one Texture into the Material Editor causes a crash

UE - Graphics Features - Mar 11, 2020

Importing two or more Textures into the Material Editor results in a crash. This is a regression from 4.24.3 (CL-11590370) as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) and ...

Oculus Touch Menu Button Input Not Received When Set In Action Mapping

UE - Platform - XR - Mar 9, 2020

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

Skeletal mesh LOD 0 "LOD Info" loose their settings when we reimport

UE - Editor - Content Pipeline - Import and Export - Mar 6, 2020

Set critical because loosing settings is dangerous. This is not a regression, the bug is in 4.22 and earlier version. We have to save all options of the LODInfo, currently nothing is saved. Also sh ...

UDIM textures have default Tiling Method set to Wrap but causes incorrect filtering on edges.

UE - World Creation - Worldbuilding Tools - World Composition - Mar 6, 2020

UDIM textures have default Tiling Method set to Wrap but causes incorrect filtering on edges. It should be set to Clamp or Mirror by default. ...