Niagara Ribbons using Two Sided materials are incorrectly lit

UE - Niagara - Apr 15, 2019

Two Sided materials are lit incorrectly on Niagara ribbons. The sides will be flipped of how they should be. ...

iOS - Graphical distortion when packaging with Metal Desktop Renderer v2.1 turned on

UE - Platform - Mobile - Feb 3, 2021

Marking as a regression as this issue does not occur in 4.25.4 ...

An Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node

UE - Rendering Architecture - Materials - Apr 20, 2022

Assertion is thrown when connecting a Vertex Interpolator nod to PerInstanceCustomData node to the Result node. ...

Deferred decal does not display when running GTAO.

UE - Graphics Features - Mar 4, 2020

Deferred decal does not appear if GTAO is enabled. ...

Cast Translucent as Masked in the Material Editor is no longer working

UE - Graphics Features - Apr 7, 2016

When enabling the option for Cast Shadow as Masked in the Material for a translucent object the shadow is no longer baked when building lighting. Using Stationary or Static Lighting will give the sa ...

Non-edit layers landscape don't work adequately with Nanite landscape while painting

UE - LD & Modeling - Terrain - Landscape - Oct 24, 2023

Result : while displaying the Nanite version of the landscape, the paint layers behave erratically (see video : [Link Removed])  If rebuilding the Nanite data, the bug gets fixed until the user sta ...

Specular errors rendering in Highlight

UE - Graphics Features - Sep 21, 2015

On certain assets, specular element is showing lines on an asset. [Image Removed] I have attached a Maya and FBX file of an asset which demonstrates this issue. ...

sRGB setting results in difference in Sprite Look compared to Texture Editor

UE - Graphics Features - Jan 16, 2015

User is reporting an issue with the preview of a Sprite and its rendering in game differing from the Texture Editor based on sRGB setting. With sRGB = True: [Link Removed] With sRGB = False: [Li ...

Decals ignore Receives Decal Flag on movable static meshes on Mobile devices or Preview

UE - Platform - Mobile - Sep 10, 2015

Decals when rendered on a mobile device or via mobile preview will ignore the receives decal flag. In Editor:[Image Removed] Mobile Preview:[Image Removed] ...

Editor Crashes When Undoing Paint Mode Selections

Tools - Sep 29, 2016

Attempting to use the paint mode tool on meshes in the level and then undo/redo the changes will cause the editor to crash. ...