Forward Rendering Lightmap Density view flicker

UE - Graphics Features - Aug 20, 2019

The shaders flicker when in Lightmap Density viewmode after enabling Instanced Stereo Rendering in Project Settings > Engine > Rendering > VR  Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), ...

Coordinate indicator disappears when entering landscape editing mode

Tools - Oct 24, 2016

Coordinate indicator disappears when entering landscape editing mode. The indicator disappears after switching to landscape mode in the editor Note: This appears to work in 4.13.2 ...

8.1 Advanced asset creation selection is flickering a duplicate selection

Tools - Apr 26, 2017

Workaround Seemed that closing and reopening the project resolves this issue This is NOT a regression as it happens in 4.15.2 ...

Volumetric Lightmap Holes Appear Every Fifth Build

UE - Graphics Features - Sep 11, 2018

Volumetric lightmap holes appear every fifth build.  Found in 4.19 CL# 4033788, 4.20 CL# 4302132, and 4.21 CL# 4348893 ...

SetActorLabel() is slow on Landscapes

UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025

I've noticed calling SetActorLabel() on a Landscape will call PostEditPropertyChanged() which causes the Landscape Components to regenerate all collisions. As per the repro, this can take a long tim ...

Importing Mesh with "Import Animations" enabled crashes editor.

OLD - Anim - Nov 13, 2015

After importing a mesh with "Import Animations" enabled the editor crash's. Importing only the mesh does not crash the engine. Importing animation separately and assigning to Skeletal mesh on import ...

Skylight does not honor the Visibility settings when hidden

UE - Graphics Features - Sep 19, 2016

The Skylight actor cannot be disabled when using 'Hide' from the right-click context menu or using the visibility eye icon in the World Outliner. ...

Crash in Skeletal Editor due to null ActorFactory reference

OLD - Anim - Feb 1, 2017

When a material is dragged/dropped into a skeletal editor's bone hierarchy, the editor will crash due to null ActorFactory Regression: Yes - Crash does not occur in 4.13.2 binary (CL 3172292) ...

Changing line thinkness causes line to not be rendered

UE - Graphics Features - Apr 27, 2017

When drawing a canvas line item to a render target, changing the thickness of the line to anything other than 0 causes the line to not be rendered if the associated material's blend mode is set to T ...

Cascade sprite scales incorrectly / flickers when set Screen Alignment to Velocity

UE - Niagara - Dec 10, 2019

Very easy to reproduce. uasset file provided. Doesn't happen in 4.22.3 ...