Unreal Engine Issues
Unreal Engine Issues
SIGSEGV: invalid attempt to access memory at address 0x3
UE - Platform - Apple - Jan 30, 2015Crash Report: [Link Removed] ...
Crashes upon project start up
Tools - Feb 10, 2015Crash Report: [Link Removed] After downloading latest revision, user is no longer able to open project due to constant crash. ...
Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer
UE - Platform - Linux - May 29, 2019Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer. This freeze causes the various symptoms described in the Results field. In 4.21.2 (CL-4753647) ...
Setting the Falloff Distance of a Sound Wave/Cue to 0.0 will no longer Play Sound
UE - Audio - Jan 13, 2016As the title suggests, whenever you add a Sound Cue or Wave to a level and set it's 'Falloff Distance' to 0.0 the sound will no long play. I have attached a project to provide a simple regression t ...
Distant paint/scatter grass not rendered in PT exports
TM - Rendering - May 5, 2025Reported in SF [Link Removed] In TM 2025.1.1, in PT renders with large amounts of scattered or painted vegetation, distant grass may not appear in exported renders that would previously appear in t ...
Unknown force is applied to the cloth when changing the skeletal mesh LoD with cloth.
UE - Simulation - Physics - Character - Jul 11, 2019There are 3 issuesEach particles don't restore its previous position. Which is for calculating velocity by verlet iteration.The previous transform is cleared by current transform. It provides zero v ...
UE 5.4 - Specular/reflection disappears above 4096 resolution render
UE - Rendering Architecture - Aug 1, 2024After a viewport is more than 4096 pixels wide, Lumen's specular reflections buffer cuts its width off at 4096 pixels. It appears that the affected buffer is "Lumen.Reflections.ResolvedSpecularIndi ...
DLC Package content isn't recognized when using RequestAsyncLoad
UE - Foundation - Core - May 24, 2016Attempting to load dlc assets with RequestAsyncLoad function results in the assets not being recognized. ...
r.Lumen.Reflections.DownsampleFactor split screen artifact
UE - Graphics Features - Lumen - Dec 6, 2024In Split-Screen, with "r.Lumen.Reflections.DownsampleFactor" set to 2, it is possible to have vertical colored artifacts on View 1 (the second view). The Licensee reported the artifact occurred on ...
Early Z-Pass no longer works
UE - Graphics Features - Jun 11, 2019Since 4.22.2, the Early Z-pass flags are being ignored, resulting in the number of draw calls to increase. Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4.23 (CL - 6925347) ...