Unreal Engine Issues
Unreal Engine Issues
Animation FBX export is broken for ThirdPersonCharacter
UE - Editor - Content Pipeline - Datasmith - Exporters - Jul 20, 2018It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...
"No value will be returned by reference" when calling Event Dispatcher with an Array
UE - Gameplay - Aug 14, 2018When creating an Event Dispatcher that sends an array, a blue Note shows up on the bottom of the Call node stating that "No value will be returned by reference". This is a similar issue to [Link Rem ...
Certain materials are overly bright with Ray Traced Global Illumination denoiser
UE - Graphics Features - Lumen - Mar 14, 2019Ray 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 ...
DevelopmentServerLauncher.exe loops whenever the editor is open even if no iOS devices are connected
UE - Platform - Mobile - Apr 29, 2019A user has reported that DeploymentServerLauncher.exe will continue to poll for devices even if no iOS devices are connected. I am under the impression that this is so that Windows can poll for iOS ...
Gameplay Debugger doesn't work in ShooterGame when "Run Dedicated Server" is checked
UE - AI - May 10, 2019The 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 ...
Arrays of Soft Object local variables are not captured for reference graph
UE - Gameplay - Blueprint - May 20, 2019This bug comes from https://udn.unrealengine.com/questions/492861/view.html and is a very similar problem to [Link Removed] The issue is that the code that harvests soft object references stored in ...
Combo Box String widget doesn't change color via function
UE - Editor - UI Systems - Slate - Sep 24, 2019Attempting to change the Foreground color of a Combo Box String in the Graph tab of the owning widget Blueprint has no effect. Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22.3 (CL - 7 ...
Color picker does not change the color of a Vector Parameter in a Material Instance until the mouse button is released
UE - Graphics Features - Mar 11, 2020This is a regression from 4.23.1 (CL-9631420). The color picker does not update in realtime anymore when holding down the left-mouse button. Only on mouse-release does it update. This was reported ...
[Groom] Very thin hair has incorrect raytraced shadow on edges
UE - Graphics Features - Lumen - Jun 8, 2020This only happens when 1) Hair Width is very small. e.g. 0.01 in the example 2) Light has raytraced shadow and Samples Per Pixel has a value > 1. e.g. 8 in the example The problem seems to be rel ...
Volumetric Clouds appear in front of foreground objects in the Right Eye of VR Headsets
UE - Platform - XR - Dec 15, 2021It seems that volumetric clouds in the background appear in front of objects in the foreground in the right eye of a VR headset. I also tested in //UE4/Release-4.26 @ CL 15973114 and the results wer ...