Unreal Engine Issues
Unreal Engine Issues
Lumen reflection distortion
UE - Rendering - Graphics Features - Lumen - May 30, 2024Lumen reflections appear distorted depending on the camera orientation. ...
Crash when DFAO is disabled and a lower scalability is used while Distance Field Shadowing is enabled.
UE - Graphics Features - Feb 2, 2016When enabling Distance Fields for a project and adjusting the cvars to disable DFAO and set a lower Detail Mode will result in a crash. Using the console commands outlined in the steps will work. ...
Translucent Water renders dark with Lumen enabled.
UE - Graphics Features - Ray Tracing - May 30, 2023Regression tested in 5.1 at CL 23901901 where the issue still occurs. The material will still have the normal and reflective properties. ...
Ray tracing scene doesn't reflect WPO with instance custom data
UE - Rendering - Graphics Features - Ray Tracing - Sep 19, 2025When custom instance data is used to calculate WPO in a Material and applied to an ISM the WPO value in the Lumen scene (ray tracing scene) is different than the visible scene resulting in incorrect ...
[CrashReport][GPU Crash] NodeAndClusterCull
UE - Rendering - Features - Nanite - Nov 19, 2024Users affected: 51 Total occurrences: 90 Last occurrence: November 19th 2024, 3:25:41 am First occurrence: August 7th 2024, 8:10:10 pm Latest version: ++UE5+Release-5.5-CL-37670630 Platform: Win64 [ ...
Evaluate WPO for Foliage(HISM) is based on Local Space？
UE - Graphics Features - Lumen - Aug 21, 2021Per-object shadow corrupts on Android Vulkan
UE - Platform - Mobile - Jul 2, 2020Farfield shadow in lumen scene
UE - Rendering - Graphics Features - Jul 21, 2025Shadows in the Lumen Scene from Lumen's Direct Lighting do not match the world when in the Lumen Far Field. This leads to shadows where there should not be any, and missing shadows where there shou ...
Sphere Reflection Captures overridden by Skylight
UE - Rendering - Graphics Features - Jun 10, 2025When using non-Lumen lighting and Screenspace reflections off, the skylight location overrides the Reflection Capture location during Build Reflections. This results in a Reflection Capture taken fr ...
Distance Fields do not work with Directional Lights when using a AMD Radeon card.
UE - Graphics Features - Aug 25, 2015Distance Field shadows do not appear to be working with those using Radeon series cards. Sample project attached DXDiag of machine that is having the issue is attached. AMD Radeon 200 series. ...