Precomputed lighting is not saved when using Save As or Duplicate for levels

UE - Graphics Features - Sep 30, 2016

Lighting is invalidated with levels that have been duplicated or Saved As. The maps that are created are immediately marked dirty and need to be resaved vs how they were in 4.12.5 where they wouldn' ...

Copying a destructible mesh in the viewport loses reference to assigned mesh in the details panel

UE - Simulation - Physics - Destruction - Nov 4, 2014

BRANCH: MAIN CHANGELIST: 2346079 PLATFORM: Windows DESCRIPTION: When copying a Destructible mesh in the viewport the Destructible Mesh component will not be shown for the copied mesh. The mesh can ...

Morph Targets flicker Randomly in Slave Mesh

OLD - Anim - Oct 1, 2015

When a mesh is slave to a master mesh, its morph targets will flicker when Played in Editor. This does not occure with the same assets in 4.8. This has been reported by at least two different use ...

32bit TGA Texture With Alpha Has Noticeable Artifacts On RGB Channels (DXT5)

UE - Graphics Features - Feb 17, 2017

When using a 32bit tga with an alpha channel that has hard edges the compression method (DXT5) will create artifacts in the RGB channels that normally aren't there whit DXT1 compression(no alpha). ...

FBatchedElements::Draw - OrthoZoomFactor can be reset to 1.0f if Line.bScreenSpace is ever false

UE - Graphics Features - Feb 20, 2017

A licensee has reported that the Draw function in BatchedElements.cpp can set the OrthoZoomFactor (not a local variable) to 1.0f if Line.bScreenSpace is ever found to be false. The line this can oc ...

KiteDemo: DestroyActor Warning when Saving - Height_x3_y2_C_1

UE - World Creation - Worldbuilding Tools - World Composition - May 4, 2017

While testing in KiteDemo - //UE4/Release-4.16 CL 3420042 in Binary – When the editor autosaved I noticed a warning occurred in the output log. – Issue occurs during any Save operation. User can use ...

Sound Wave Actions Menu Closes Automatically When Changed to Columns View

Tools - Dec 15, 2017

After changing the view to columns (by going through Right click < Create Dialogue < View Options < Columns) the Sound Wave Action menu will close out automatically before any options can be selecte ...

Fog Does Not Behave As Expected in Splitscreen

UE - Graphics Features - May 25, 2018

This bug seems to repro very inconsistently for me, but I've seen it affect Atmospheric Fog and Exponential Height Fog, and reproduced in 4.18.3, 4.19.2, and Main CL 4093338. I've attached Config fi ...

Incorrect render target index assignment in GLSLBackend

UE - Graphics Features - May 18, 2018

While investigating [Link Removed], I have found that GLSLBackend always automatically generates render target location indices, regardless of user-specified ones via SV_TargetX HLSL semantics. Rel ...

Project Version setting not reflected in a project's packaged executable's property details

UE - Foundation - Cpp Tools - Feb 5, 2019

When a Project Version value has been specified in the Project Settings, this value is not set into either the File Version value or the Product Version value in a packaged game. The File Version va ...