Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps

UE - Graphics Features - Feb 18, 2025

Changing the “DistanceField Trace Distance” requires rebuilding the lightmaps even though the valu never affect light baking process in Lightmass. ...

iphone7+ Does Not Get Correct Device Profile Selected

UE - Platform - Mobile - Nov 16, 2016

When launching to iphone7+ the incorrect device profile will be used for device profile settings. ...

Using The Draw line node over an image in UMG causes Graphical issues

UE - Editor - UI Systems - Feb 12, 2015

Using the Drawn line node to draw a line over an image in UMG causes the viewport to display incorrectly. In 4.7 the lines also are not drawn. ...

BlueprintNativeEvents with no return value (void) cannot be overridden in Blueprints.

UE - Gameplay - Blueprint - Dec 22, 2014

BlueprintNativeEvents (and BlueprintImplementableEvents) are not available to be overridden in a Blueprint Graph if they do not return a value. This affects both functions present in source code, as ...

Sprite sheets with modified textures don't reimport correctly

UE - Gameplay - Paper2D - Mar 17, 2015

Also reproduced in Main Promotable-CL-2479729 paper2Dsprites assets created from Texture Packer can no longer be reimported into the engine with version 4.7 ...

Make sure games can ship with VS2015 without needing extra redists

Tools - Jul 28, 2016

VS2015 redists are not part of our standard redist install (because their update prereqs on Windows 7 and 8 make them virtually impossible to package in), so applocal install is required. ...

Font advance and fallback font metrics have issues in 4.16

UE - Editor - UI Systems - Slate - Jun 5, 2017

There were some font regressions in 4.16 that we've since fixed (CL# 3456916 and CL# 3425681). These are affecting live users so we should get them into the next 4.16 build. ...

Lighting Channels Do Not Function with 78+ Lights on Actor

UE - Graphics Features - Oct 20, 2017

Lighting channels do not function when the number of lights affecting actors is 79 or higher. Any number of lights that is 78 or fewer will honor lighting channel assignments. ...

NPC - Texture Sample DI does not work on Niagara Parameter Collections

UE - Niagara - Nov 8, 2023

Texture sample DIs no longer work when used with Niagara Parameter Collections. This seems to affect Volume Texture DIs based on customer reports, but I have not confirmed this.  ...

Expanding a folder in the Finder through the editor will crash the editor

UE - Platform - Apple - Mar 16, 2015

Expanding a folder in the Finder through the editor will crash the editor. Reproduced in 4.7.2 binary on 10.9.5 Crash Report: [Link Removed] ...