Volumetric cloud shadow bug with two directional lights

UE - Rendering Architecture - Aug 9, 2024

Lumen doesn't use correct sky light settings when GI scalability changes from Low to High

UE - Graphics Features - Lumen - Sep 24, 2024

When the Global Illumination scalability settings are changed in the editor from High to Medium, they primarily act on the r.Lumen.DiffuseIndirect.Allow and r.SkyLight.RealTimeReflectionCapture.  No ...

Steam Voice Chat Stops Functioning After Server Travel

UE - Online - Apr 27, 2017

Voice Chat stops working after Server Travel is executed. ...

Blueprint Function Library variables can be promoted out of scope

UE - Gameplay - Blueprint - Oct 5, 2020

Input parameters can be promoted to variables from the context menu when dropped on an empty graph. Per [Link Removed] this is not expected and dangerous for users to use. This is reproducible as f ...

Lightmass crashes when lighting is built with material that has "Cast Shadow as Masked"

UE - Graphics Features - Oct 4, 2017

Lightmass is crashing when using a material that has "Cast Shadow as Masked" set to true in its properties. Found in 4.18 P3 CL#3676890 Unable to reproduce in 4.16.3 CL# 3561208 and 4.17.2 CL#365 ...

ResavePackages commandlet with Build Lighting applies level transform each time

UE - Foundation - Core - Cooker - Sep 13, 2016

While using the commandlet for RebuildPackages with -BuildLighting and having any sub-levels with level transforms will be added to the current position each time this commandlet is run. As an exa ...

GetRelevantAnimTime functions don't work with State Aliases

UE - Anim - Gameplay - Jan 26, 2024

GetRelevantAnimTime family of transition don't work with state aliases ...

[Crash]-[Reimport] - Crash on reimporting CAD file with deleted light sources

UE - Editor - Content Pipeline - Datasmith - Importer - Jul 6, 2018