geometry script AppendSimpleSweptPolygon can crash if called with empty path

UE - Graphics Tools - Modeling Tools - Apr 26, 2022

geometry script "Append Simple Swept Polygon" crashes if called w/ an empty path (but non-empty cross section polygon) ...

The number of elements in an array remain the same as the default when duplicating an actor

UE - Gameplay - Blueprint - Feb 22, 2017

If a user removes elements from an array in an instance of that blueprint in the level and then duplicates the actor (in the level ) containing the array, then the resulting actor will have the orig ...

Hitching when scrubbing values inside of color picker in binary builds

Tools - Jul 5, 2016

Large hitching is occurring when click dragging inside the color wheel of the color picker or scrubbing RGB, HSV, and Value/Saturation sliders. I am only able to repro this issue in Binary builds. ...

Huge game window when launching onto Safari 9.1.2

UE - Platform - Mobile - Aug 31, 2016

The game window in the Safari browser expands to a huge size along the Y axis. We do not see this issue on Safari version 10. The game window expands for about 5 minutes before the game is playab ...

Scrolling the mouse wheel slowly on Mac does not have any effect in the editor

UE - Platform - Apple - Jan 19, 2017

REGRESSION No, occurs in 4.14.3 On Mac, scrolling slowly (one or two notches) does not have any affect in editor, whereas on the Windows, this has full effect. This was seen in editor (with scroll ...

Editor windows that contain viewports cause large framerate loss

UE - Graphics Features - Feb 7, 2017

When editor windows are opened that contain a viewport of some sort, the framerate of the engine drops drastically. Examples include the Blueprint Editor, Material Editor, and Persona. The viewport ...

Certain materials are overly bright with Ray Traced Global Illumination denoiser

UE - Graphics Features - Lumen - Mar 14, 2019

Ray Traced Global Illumination is causing some materials to glow extremely bright Disabling r.raytracing.globalillumination.denoiser fixes the issue In 4.22 preview 5 binary (5365847) the result i ...

Gameplay Debugger doesn't work in ShooterGame when "Run Dedicated Server" is checked

UE - AI - May 10, 2019

The Gameplay Debugger does not function in ShooterGame when "Run Dedicated Server" is checked. This issue only affects ShooterGame and works as expected in a Blank project or if "Run Dedicated Serve ...

[Feature Request] Hardware video decoding on Windows DX12

UE - Media Framework - Jun 22, 2021

Currently, all DX12 video decoders on Windows use software decoding. On the other hand, if the engine is running on DX11, developers can use this by enabling the "Hardware Decoding" option under "Ex ...

Platform-specific defines not picked up by Intellisense

UE - Core - Cpp Tools - UnrealBuildTool - Aug 31, 2022

With the way PLATFORM_XSX, PLATFORM_PS5 etc. are defined, it seems intellisense doesn't know about them, because the .vcxproj only references the Win64 version of Definitions.h, and they are defined ...