Regression: Several project settings, especially from built-in Plugins, are being silently erased when previously they were not, which is perceived as a bug

UE - Foundation - Feb 28, 2025

In UE's Project Settings, some pages are saved automatically to the project's "Config/Default<CATEGORY>.ini" file (meant to be version-controlled) on every change. Other pages have buttons "Set as D ...

Scaling skeletal mesh components breaks capsule shadows

UE - Graphics Features - May 18, 2016

Increasing the scale of a skeletal mesh actor with Capsule Shadows set to true causes the shadow to appear chunky and broken. Regression (No), feature was not present in 4.10.4. ...

Crash when using Vertex painter with material including cubemap texture sampler

OLD - Anim - Jul 3, 2017

Engine crashes when static mesh have material with cube sampler in vertex painter mode. Simply DaylightAmbientCubemap_Mat have texture cube as texture sampler. This is not reproduced in 4.15 versi ...

Regression: Shader compile failure with SceneDepth in mobile and PC, ES3_1

UE - Platform - Mobile - Nov 30, 2018

SceneTexture:SceneDepth node is not properly compiled in ES3_1. Regression? yes, It is working in 4.20.3 launcher version. This log come up with compile failure LogMaterial: Display: Missing cache ...

Custom Water Body does not work with its own Distance Culing

UE - Graphics Tools - Terrain - Water - Sep 14, 2023

WaterBodyCustom seems not to work with Distance Culling settings on its own actor, either Draw Distance/Never Distance Cull or Allow Cull Distance Volume.  It only can be controlled by the CullingD ...

HDRi Backdrop Animation in Sequencer

UE - Anim - Sequencer - Apr 5, 2024

HDRIBackdrop objects cannot be rotated in Sequencer. This issue can be resolved by setting the "Run Construction Script in Sequencer" checkbox to True in the "HDRIBackdrop" blueprint. If HDRI Back ...

Set World Scale 3D on Attached Actor Allows Character to Jump Through Collision

UE - Gameplay - Jun 6, 2016

The collision of the cube static mesh is not blocking the character after Setting World Scale 3D while it is attached to another actor using the AttachToActor node. ...

"Enable Texture Streaming" in Render Movie Settings doesn't seem to work

UE - Anim - Sequencer - May 18, 2016

"Enable Texture Streaming" in Render Movie Settings doesn't Enable/Disable Texture Streaming ...

Max Deviation setting is never used for Mesh Reduction, causes incorrect values for automatically computed LOD distances

UE - Graphics Features - Feb 1, 2018

The Max Deviation setting for a static mesh LOD is never used for Mesh Reduction. This results in incorrect values for automatically computed LOD distances, because the calculation uses the Max Devi ...

Float RGBA Framebuffer rendering settings changes UI

UE - Editor - UI Systems - Slate - Nov 11, 2019

When changing the rendering Frame Buffer Pixel setting from "10 bit RGB 2 bit alpha" to "Float RGBA".  The Editor's UI will change.  (Please see the attached screenshots for comparison) ...