Area Lights casting Specular regardless of material specular value

UE - Graphics Features - Sep 30, 2021

The rectangle lights ignore the specular value of lit materials and will apply a specular highlight to them regardless of the value. you can compare the result against a standard point light and you ...

Alpha channel is not working on drag and drop function

Tools - Nov 5, 2014

When using the drag and drop function in UMG on an image with an alpha map the background will show up as black instead of translucent. ...

Build lighting for single stationally light level generates a shadow map in PF_B8G8R8A8 format

UE - Texture - Nov 1, 2024

Texture format override to BGRA8 due to changes in CL-30603716. The following code can restore the previous behavior. void FShadowMapPendingTexture::StartEncoding(ULevel* LightingScenario, ITexture ...

Painted Foliage and Landscape Grass cannot use Lighting Channels

UE - World Creation - Worldbuilding Tools - Foliage - Jul 5, 2016

Currently there is no way to set painted Foliage instances of an actor be able to use lighting channels even though these can be set to movable in their properties. Since Instanced and Hierarchica ...

Duplicating functions doesn't reset the GUIDs of local variables.

UE - Gameplay - Jun 15, 2023

This is actually a bug with function duplication via UEdGraphSchema_K2::DuplicateGraph. After a function graph is duplicated, the function entry node still retains the same GUIDs for its local vari ...

Don't display events in blueprint function with profile stats.

UE - Foundation - Core - UObject - Nov 28, 2019

When look at stats in Unreal Frontend, can see the events that run in the function. It work in 4.21, but it doesn't work in 4.22. ...

Deleting a function in a parent class that is over written in a child class will cause a crash

UE - Gameplay - Blueprint - May 7, 2015

The editor crashes after deleting a function in a parent class that has been implemented and over written in a child class. ...

Adjusting Default Light Settings for Atmospheric Fog causes Crash

UE - Graphics Features - May 2, 2016

Adjusting default light settings in the Color Picker palette for atmospheric fog causes the engine to crash in UE 4.12 Preview Regression: This does not occur in UE4.11 ...

Disabling Shadow Denoiser causes raytraced shadows from Rect Lights to disappear

UE - Graphics Features - Lumen - Nov 6, 2020

Disabling Shadow Denoiser causes raytraced shadows from Rect Lights to disappear ...

Converting a function with local variables to an event crashes editor

UE - Gameplay - Blueprint - Dec 9, 2020

When converting a function with a local variable to an event, editor crashes. Issue does not occur in 4.25, therefore a regression. ...