Ambient Occlusion not Applied in Buffer Visualization Using Forward Shading

UE - Graphics Features - May 13, 2019

Ambient Occlusion not applied in Buffer Visualization while Forward shading is enabled. In the "Lit" view mode AO is still applied. This is working as expected in 4.21 CL# 4753647. Found in 4.22 C ...

Niagara Using a VAT has Intense Motion Blur

UE - Niagara - Jun 3, 2019

Niagara mesh particle using a VAT has Intense Motion Blur. Found in 4.22 CL# 6574378 and 4.23 CL# 6763247 Unable to test this in 4.21 and 4.20 as the project provided with assets needed was made i ...

Enabling Omni Directional Stereo Capture Breaks Draw Material to Render Target Functionality

UE - Graphics Features - Jun 5, 2019

Enabling ODS (omni directional stereo capture) in project breaks Draw Material to Render Target functionality. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6836133 ...

Niagara Remove Pin Feature now deletes the variable completely from the Parameters Pane

UE - Niagara - Mar 12, 2020

This is a regression from 4.24.3 (CL-11590370). Removing a pin on a Niagara Module Script parameter will removed the variable as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) ...

Ray Tracing Translucency - Sample settings have no effect

UE - Graphics Features - Lumen - Oct 15, 2020

Ray tracing translucency samples per pixel settings have no visible effect.  Reported and tested in version 4.25.3(CL 13942748). Tested and found in versions 4.25.3 and 4.26.0 Preview 2(CL 14419252 ...

Adding an output to the default function of a Blueprint Interface now requires the Interface to be compiled in order to change the output's values

UE - Gameplay - Blueprint - Mar 15, 2022

In 4.27 immediately upon adding an output to the default function that output can be edited without needing to be compiled. In Preview 2 once an output is added the Blueprint Interface needs to be c ...

Changes to InputMappingContext made during game play revert to previous state after restarting engine

UE - Gameplay - Input - Nov 21, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. The following Blueprint nodes are affected by the same issue:Map KeyUnmap KeyAdd Playe ...

r.GTSyncType 2​ console command causes incorrect frame rate display on Windows platform

UE - Rendering - Architecture - RHI - Feb 6, 2023

The FRHIFrameFlipTrackingRunnable thread is not initialized on Windows, so RHIGetFrameRate always returns zero. As a workaround, remove the code added by CalculateFPSTimings for Windows platform, a ...

Improper clipping in children of a retainer widget

UE - Editor - UI Systems - Slate - Jan 21, 2025

Children of retainer widgets have improper clipping, causing any widgets set to "Clip to Bounds" to clip incorrectly. This may also affect hit testing in cases where multiple retainer widgets are ne ...

[OPENGL]: Enable Subsurface Scattering

Tools - Jun 29, 2015

Subsurface scattering is disabled on all OpenGL platforms despite the shaders being properly translated & OpenGL platforms supporting the relevant CPU-side APIs. This also affected Metal for the WWD ...