Unreal Engine Issues
Unreal Engine Issues
Translucent Materials no longer reflect light when using Forward Lighting variable
UE - Graphics Features - Jun 7, 2016Translucent materials are no longer showing light reflections in scene when using r.forwardlighting 1 with lights. This is a regression from functionality in 4.11.2. This no longer works with 4.12 ...
CharacterMovement doesn't clear velocity
UE - Runtime - Simulation - Oct 11, 2024Velocities are not being cleared when physics simulation set to false. ...
Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False
UE - Rendering - Architecture - Aug 8, 2025The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...
Lit Translucency Receiving Shadows with Forward Shading Enabled
UE - Graphics Features - Aug 13, 2018When forward shading is enabled, particles that have materials with their lighting mode set to "VolumetricNonDirectional" will recieve shadows. Attached images provided by user. Found in 4.19 CL# ...
Actor foliage does not respect "foliage.CullDistanceScale"
UE - World Creation - Worldbuilding Tools - Oct 15, 2024Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...
Foliage painted on Mesh Terrain disappears after edits are made
UE - Graphics Tools - Mesh Terrain - Sep 22, 2026Mesh Terrain recreates the visible section actors when edits are made, and those sections in the editor don't correspond to the ones at runtime, which breaks the ComponentId that the foliage system ...
[CrashReport] UE4Editor-Core.dylib!<Unknown>
OLD - Anim - Dec 31, 2015[Link Removed] ...
Invalid API documentation file
Docs - Jun 9, 2017The API.chm file is invalid. Additionally the website API docs are out of date. This is tied to a larger issue with the APIDocTool. ...
Volumetric Light Fog Leak through objects
UE - Graphics Features - Dec 31, 2018Any environment with volumetric fog enabled will have a light leak which appears through objects. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...
SSR not rendering correctly in SM4 Preview
UE - Graphics Features - Sep 20, 2017This is a regression from 4.17.2 and you do not need to be in PIE to see the effect. This is not seen in Shader Model 5 ...