Material Particle SubUV Sample does not work with Tex Object

UE - Rendering Architecture - Materials - Aug 29, 2025

The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. ...

Intermittent Crash in Pose Search during Cook

UE - Anim - Gameplay - Jan 27, 2025

User reports that they've been running into an intermittent crash in Pose Search during Cook. Pose Search attempts to index data outside the bounds of an array. Based on the logs, each asset seems t ...

Event Trace Log prints node actions multiple times

UE - Gameplay - Blueprint - Jun 10, 2015

If a blueprint has a breakpoint on a node and that node is utilized in PIE, the Event Trace in the Debug Log window will register each action taken by the blueprint multiple times. ...

Sample game headers aren't set up in an extensible way

Docs - Samples - Mar 30, 2015

Our sample games all seem to use the semi-deprecated Classes folder for their headers, and many of these headers omit a #pragma once (or other header guard). This means that they don't play nicely ...

Color Picker changes Hex Value when manually entered

Tools - Aug 22, 2014

In the Material Instance, the color picker will change the color when typing in the Hex Value. IMPACT:                   Incorrect color selection through manual Hex Code input WORKAROUND: Do not ...

TargetArray nodes are reported as invalid if played in Standalone mode but not in PIE

UE - Gameplay - Blueprint - Feb 20, 2015

TargetArray nodes are reported as invalid if played in Standalone mode and the blueprints they are contained in are not rendered. Playing in PIE however works correctly and all blueprints are rende ...

Difference in Physics on Client in Standalone vs PIE

UE - Networking - Dec 3, 2015

Difference in force on an actor on a client in a dedicated server scenario between PIE and Standalone. Tested in 4.10 and 4.11. Test project attached. ...

Problems rendering higher resolution than 1080p from matinee with "Use Separate Process"

Tools - Apr 6, 2016

Problems rendering higher resolution than 1080p from matinee with "Use Separate Process". Seems to render only part of the frame and is stretched. This is a regression from 4.10. [Image Removed] ...

Static light reflections do not honor Min Roughness settings for lights.

UE - Graphics Features - Aug 10, 2015

When using static lighting with Reflection Captures, the light sources Min Roughness setting is not honored. This is part of the new update for Reflection Capture Actors to render the light shape ...

Depth of Field blur is inconsistent with r.ScreenPercentage == 100 (Dynamic resolution)

UE - Graphics Features - Oct 29, 2024

Depth of Field, with "r.DOF.Recombine.Quality = 0" will adjust the size of the depth in focus based on screen percentage. This might be related to over-fitting from the tile classification, because ...