Unreal Engine Issues

Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh

This is a regression tested in //UE4/Release-4.27 CL#18319896 Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh. The closer a colors R, G, or B value is to 1.0 or 0.0 the mor ...

Particle Color Does Not Influence World Position Offset

Particle Color outputs zero when being used with World Position Offset in the material editor. ...

The vertex color becomes red when importing a static mesh without Color Set

It seemed to be white at 4.19, but it seems to be red at 4.20. I found out that there seems to be a cause for initialization of Mesh Attributes. As a result of fixing this, it is now displayed in wh ...

Applying Clothing Data Causes Mesh Vertex Color to Turn Black (or crash)

-When a clothing asset is applied to the mesh, the vertex color(s) change to solid black -Can be removed by right click Remove Clothing Data -Crashes in Main-4.20 -Can't be tested in 4.17.2 due t ...

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode Hi, We have a material that uses the Depth Fade node for the Opacity and Base Color. However, the engine cras ...

Emissive Materials Change Colors Unexpectedly With Increased Values

When multiplying vector 3 (R,G,B) values by a scalar value of increasing quantity the emissive output will begin to change colors. The most unexpected is the blue color that will turn purple while t ...

Post Process Material: different color behavior in Sequencer Render vs Movie Render Queue

During lookdev, I use a post process material to bring reference images into the engine to compare against my work.  The goal is for the reference image to not be touched by any of the Unreal color ...

OCIO: orthographic viewport perspectives disable color transform

Switching through a non-perspective view disables the OCIO color transformation until perspective is re-selected. (There is also a related Slate-Editor issue where the visible viewport label doesn't ...

Track color in the light track doesn't match the color in the details panel

ACEScg Working Color Space renders more saturated than previous versions

Regression: Tested in UE5/Release-5.0, this issue does not occur so this is a regression. This appears to be effecting all Working Color Spaces as well. Each Working Color Space chosen renders the ...