Screenspace Denoiser creates artifacts for Ray Traced Shadows

UE - Graphics Features - Ray Tracing - Nov 13, 2023

Screen space denoiser creates two types of artifacts: artifacts around boundary for general lighting The artifact is there before 5.2 but since the ray traced shadow denoiser denoises on the sqr() s ...

Disabling the Paper 2D plugin causes a packaged project to not open

UE - Foundation - Cpp Tools - Automation Tool - Jun 19, 2017

When working in a project that is in 4.16, disabling the Paper2D plugin causes a packaged version of the project to not open. This issue is different from previous versions as disabling the plugin i ...

BlendListByEnum assumes that enum values are sequential

UE - Anim - Runtime - Anim Blueprints - Aug 26, 2024

FAnimNode_BlendListByEnum assumes that values within a custom enum type are sequential (ie. the index 0 = value 0, index 1 = value 1).  But this is not true of all custom enum types, for example: U ...

Crash when connecting to Source Control

Tools - Apr 27, 2016

Attempting to connect to Source control causes the editor to crash immediately. According to Travis.L this only affects Binary builds. Regression: YES - Connecting to source control worked as expec ...

Get Input Touch State produces incorrect vector position

UE - Gameplay - Input - Sep 25, 2018

Get Input Touch State produces incorrect vector position when using it on Android. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4395058) ...

UnrealFrontend does not store the last project used.

UE - Platform - Console - UnrealFrontend - Jun 12, 2024

In pasts unreal engine versions like 5.2 or 5.3, when you loaded a project with UnrealFrontend, the uproject was saved inside the Engine.ini file. In version 5.4 it does not get saved and you need t ...

UKismetArrayLibrary::GenericArray_Shuffle is weighted to return some results more than others

UE - Gameplay - Aug 15, 2017

The implementation of UKismetArrayLibrary::GenericArray_Shuffle() will generate certain array shuffle results more often (up to three times as much) than others, rather than having a roughly equal c ...

External Reference Spam converting projects to 4.10

UE - Gameplay - Mar 17, 2016

Converting a project from 4.8.3 to 4.10.4 causes external reference spam in the message log>map check window. Seems directly related to [Link Removed]. Making new jira on request. ...

Selecting a Packed Level Actor Blueprint Asset in Viewport does not select all packed assets

UE - World Creation - Worldbuilding Tools - Level Instances - Nov 16, 2022

The Packed Level Actor behavior has changed since 5.0.3, exhibiting the behavior described in the Result. I was able to reproduce this 4/4 times on Windows. When testing on 5.0.3, I confirmed that t ...

When Previewed, Material Nodes are not labeled as such until a new Node is added

UE - Rendering Architecture - Materials - Jan 22, 2016

When you preview a node in the material Editor, the node color will correctly switch to the Preview Blue, but will not show the preview tag until another node is added to the Graph. Preview Node:[I ...