Unreal Engine Issues
Unreal Engine Issues
Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor
UE - Simulation - Physics - Feb 20, 2018Snap to Bone doesn't actually affect the rotation of a Constraint in the PhAT editor. The visualizer does show the expected rotation but the Constraint will still rotate in the same direction it was ...
Content Examples: Example 1.6 broken collision - Cloth Map
UE - Simulation - Physics - Character - Apr 26, 2017Example 1.6 on Cloth Map seems broken. Both Assets clip when twisting when they're supposed to be examples of Self Collision. Regression: Yes Works in 4.15 ...
Hair Shadows Not Affecting SSS Back Scattering (Subsurface Profile)
UE - Rendering - Graphics Features - Mar 30, 2026Groom strands do not appear to correctly block transmitted light for Subsurface Scattering Profile Materials. In some cases, not only will they not block the light, but can instead lead to more ligh ...
Destroying a welded actor is causing an Array index out of bounds crash on 5.6
UE - Simulation - Core - Jul 30, 2025Destroying a welded actor is causing an Array index out of bounds crash on 5.6. The licensee has provided a repro project that reliably causes a crash whenever the spawned actor is destroyed. There ...
VOIP Steam recieved audio will be affected by any Audio FX the player is standing in when receiving the audio.
UE - Audio - Sep 16, 2016If the player is standing in an area that adjusted audio, VOIP audio will also be affected. ...
Unlit view is affected by Exposure Compensation when enabled by post process volume
UE - Graphics Features - Jun 7, 2018Unlit view is affected by Exposure Compensation when enabled by post process volume. This will also carry across the other debug views. Working as expected in 4.18 CL# 3832480 Found in 4.19 CL# ...
5.6 Skeletal Meshes with Disabled Sections Flicker in Ray Tracing Scene
UE - Rendering - Graphics Features - Ray Tracing - Nov 7, 2025Skeletal meshes with disabled mesh sections will flicker in the Hardware Ray Tracing Scene. Also tested on //UE/Release-5.6, CL:45232827 ...
Crash when applying Radial force to a BSP when Radial force is set to affect World static
UE - Simulation - Physics - Apr 10, 2019If a radial force component applies force to a BSP the editor will crash. The radial force will need to be set to affect world static objects. ...
Objects with physics enabled do not show up in 4.7 preview 2 (when upgraded form 4.6)
UE - Gameplay - Jan 12, 2015After upgrading from 4.6 to 4.7 preview 2 objects that are set to simulate physics will not show up if the user uses the mobile preview. ...
Lighting does not properly affect landscapes under another landscape, even if Static Lighting Resolution is increased
UE - LD & Modeling - Terrain - Landscape - Apr 29, 2015Lighting does not properly affect landscapes that are below another landscape, even after static lighting resolution is increased. This results in some areas that should be completely shadowed to ha ...