Unreal Engine Issues
Unreal Engine Issues
OSVR is affected by screen percentage Post Process volumes
UE - Platform - XR - May 6, 2016Found on: //UE4/Dev-VR CL-2967563 Screen percentage post process volumes affect rendering on the OSVR. It also renders incorrectly when affected. The incorrect effect has been logged as [Link Remo ...
Geometry Material Alignment not functioning in 4.8
Tools - Jun 15, 2015Material Alignment on BSPs are not functioning in 4.8.0 Release. This is a regression from 4.7.6. The issue does appear to be fixed and functional in 4.9 (Promotable-CL-2581018) ...
Cull Distance Volumes Affecting Actors After Being Deleted
UE - Graphics Features - Oct 7, 2019Cull Distance Volumes Affecting Actors After Being Deleted. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, and 4.24 CL# 9428115 ...
ContentExamples: UMG Example 2.3 "blueprint" is lowercased
Docs - Samples - Jan 19, 2017The word "blueprint" on stand 2.3 in the Content Examples: UMG map is lowercase, but should be capitalized ...
Specular Scale 0 on Light still affects Groom asset
UE - Rendering - Architecture - Jul 30, 2025When a light's Specular Scale is set to 0, the specular still affects hair / groom assets. The specular of other assets (like a shiny static mesh in the scene) is properly affected by the change. ...
Lumen temporal flicker after leaving Editor open for 3+ days
UE - Graphics Features - Lumen - Nov 18, 2024Lumen GI has temporal flickering/noise after running the Editor for 3+ days. ...
Materials with Subsurface Profile not affected by Opacity value
UE - Graphics Features - Oct 24, 2017A material with Shading Model set to Subsurface Profile is no longer affected by Opacity value in 4.17, 4.18, and 4.19 (Main) but was previously working as intended in 4.16. This is a regression. ...
setting Widget reflector to 0.8 causes menus to flicker
Tools - Sep 19, 2016Setting Widget reflector to 0.8 causes menus to flicker. The menus begin to flicker between sizes ...
8 bit resolution darker than 16 bit resolution inside UE4
UE - Graphics Features - Oct 8, 20158 bit textures are darker than 16 bit textures inside of editor. ...
Initial Seed value on Random Stream node has no affect
UE - Gameplay - Blueprint - Nov 16, 2017When using a Random Stream variable to populate a Random Integer in Range from Stream, the Initial Seed value has no affect on the random integer selected. Workaround: Using a Seed Random Stream or ...