UK2Node_EnumLiteral always outputs defaulted (0) value if input pin is connected

UE - Gameplay - Blueprint - Sep 28, 2018

The reported behavior repros in 4.20 and 4.21, but does not repro in 4.19. Regarding the "Literal Enum" node in blueprints: When an input enum value is connected to the input pin, the output is al ...

Object using specific Corona Material Import by default with wrong UVs

UE - Editor - Content Pipeline - Datasmith - Exporters - Jan 29, 2019

[CrashReport] GPUCrash - exiting due to D3D device being lost - D3D Hung - Nvidia

UE - Graphics Features - May 14, 2019

Separating [Link Removed] into Nvidia and AMD tickets.This ticket will house Nvidia information Exported data on 5/14/2019 with following Query:1 Month Time FrameMajorVersion is 4.22.1Callstack Con ...

Crash in a packaged project when loading into a level after a nativized Anim BP grabs a PoseSnapshot using a FName

OLD - Anim - Oct 25, 2019

In packaged projects will crash when an animation blueprint that is nativized loads into a new level. The anim blueprint needs to use the PoseSnapshot node with a FName variable passed before loadin ...

Lighting channels not working as expected when enabling Ray Tracing Shadow

UE - Graphics Features - Lumen - Oct 13, 2020

Non-Ray Tracing Shadows are only cast from lights on meshes assigned to the same Lighting Channel. When enabling Ray Tracing Shadows this is not the case. Lights will still cast Ray Tracing Shadows ...

[Spatialization] - When a sound starts playing while the listener in in the Binaural Radius, when they exit the sound stops playing

UE - Audio - Spatialization - Nov 18, 2021

If a sound starts playing while the listener is inside the binarual radius, the sound stops abruptly when they leave the radius. Does not occur if the listener starts in the binaural radius. Does no ...

[MetaSounds] - If the audio output hits an extreme Gain value, the Audio Meter Widget stops responding

UE - Audio - MetaSounds - May 20, 2022

It's possible to have the Audio Meter widget stop responding if you set the Gain really high. It will cease to work as long as the MetaSound window is open. Closing and reopening the MetaSound windo ...

FVulkanDynamicRHI::RHIReadSurfaceData​ incorrect for FLinearColor​.

UE - Rendering Architecture - RHI - Mar 4, 2024

The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...

Variant manager crash in UPropertyValue::HasValidResolve

UE - Editor - Content Pipeline - Variants - Nov 21, 2024

in the past we have reported a lot of VM related bugs which got fixed over time. Unfortunately, I think we have another one. Right now we're using 5.0.3 binaries from the launcher. Now the pro ...

Multiple setter functions in UMaterialEditingLibrary always return false even when the parameter is correctly set on the MaterialInstance.

UE - Rendering Architecture - Materials - May 30, 2025

In Unreal Engine, materials can expose parameters that can then be modified via instances (MaterialInstanceConstant). The UMaterialEditingLibrary provides several functions to modify these parameter ...