Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

UE - Graphics Features - Lumen - Jun 11, 2019

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

USD Stage is not available on Mac and Linux

UE - Editor - Content Pipeline - Import and Export - Dec 17, 2019

On Mac and Linux the option to open the USD Stage window is not there like it is on Windows. This is not a regression since USD Stage was not preset in 4.23.1 (CL-9631420) on any platform. ...

Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph

UE - Rendering Architecture - Materials - Jun 6, 2022

This is a regression testing in //UE4/Release-5.0 CL#18319896 Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph. ...

bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping

UE - Gameplay - Input - Jun 16, 2022

This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well.  I'll update the repro s ...

[MetaSounds] - Trigger on Threshold node Crashes editor on play when using literal value for threshold

UE - Audio - MetaSounds - Mar 15, 2022

Editor crashes when Trigger on Threshold node is hooked up in a Metasound graph and played using a threshold value defined on the node. If you use an Input node for the Threshold value, the crash do ...

Crash In Material Editor When Previewing A Node

UE - Graphics Features - Nov 3, 2016

When previewing a blank texture sampler in the material editor while the HLSL window is open, you can assign a texture to the texture sampler and crash the engine. ...

[CrashReport] UE4Editor_Kismet!SBlueprintEditorSelectedDebugObjectWidget::GenerateDebugObjectNames() [sblueprinteditorselecteddebugobjectwidget.cpp:454]

UE - Gameplay - Blueprint - Dec 9, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...

FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats

UE - Networking - Sep 29, 2016

Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...

API version is incorrect for licensee versions

UE - Foundation - Core - Jun 26, 2015

Reported by a licensee: We currently force the MODULE_API_VERSION to be the same as our release of 4.8.0, even if licensees are using a custom version scheme. This can cause content that will refus ...

Packaged Project fails to load on Firefox with QuotaExceededError

UE - Platform - Mobile - Apr 17, 2017

Error message is displayed on Firefox 52.0.2 (64-bit) QuotaExceededError TypeError: eventHandler.target is null QuotaExceededError This is a regression from 4.15.2 and does not occur on Chrome. ...