The "Release" function of a button fires off when changing focus from game to UI

UE - Editor - UI Systems - Jan 12, 2015

If the user in holding down a key and then uses the mouse to click on a button in UMG it will cause the key to fire off it's released execution. ...

Race condition in USkeletalMeshComponent::TickCloth due to delayable tick function.

UE - Simulation - Physics - Character - Aug 1, 2016

USkeletalMeshComponent::TickComponent is run in the PrePhysics tick group. This is the only place where the SkeletalMesh is actually checked to be != nullptr to determine whether or not the TickClot ...

Broken Lines when Calling Draw Lines Function in Standalone Game

Tools - May 9, 2016

Lines are not drawn correctly when calling the Draw Lines node in blueprints when playing in Standalone mode. Regression? Yes, I ran the same test in 4.9.2 and 4.10.4, and the issue did not occur i ...

On Mac OSX Open Asset (Command + P) Does not function as Expected

UE - Platform - Apple - May 5, 2016

On a Mac running either Yosemite or El Capitan, when you go to open an asset either through the menu: File>Open Asset or Command + P, when the pop-up window appears and you start typing, the window ...

Execute Console Command function differs from the Engine Scalability Settings

UE - Graphics Features - May 14, 2015

When executing the 'execute console command' with 'sg.ResolutionQuality 25' the engine scalability settings are at 6%. When you set the 'sg.ResolutionQuality 50' the engine scalability settings are ...

Upgrading Project After Disabling Light PropagationVolume Plugin Causes Crash

UE - Foundation - Cpp Tools - Plugin System - Apr 1, 2016

Attempting to upgrade a project from 4.10 to 4.11, or 4.11 to 4.12 with the LightPropagationVolume plugin disabled causes it to crash. Found in converting a 4.10 project to 4.11, and reproduced con ...

Fullscreen Not Functioning when Windows Task Bar is Docked Vertically on the Left

Tools - Sep 23, 2016

If the Windows Taskbar is docked on the right side of the screen, when Playing in Editor (Standalone Mode) game AND/OR a final packaged game, entering fullscreen results in the game window opening t ...

Ray Traced Translucency Option Doesn't Function in Post Process Volume

UE - Graphics Features - Lumen - Aug 16, 2019

Ray Traced Translucency Option Doesn't Work in Post Process Volume. Found in 4.23 Preview 6 CL# 7848402, and 4.24 CL# 8074192 Working as expected in 4.22 CL# 7053642 This is a regression. ...

Crash on multi viewport when streaming in sub level with rect lights

UE - Rendering Architecture - RHI - May 13, 2021