Stationary/Movable Lights render based on distance from World Origin in Orthographic Camera View

UE - Graphics Features - May 20, 2016

When using the Orthographic Camera view (such as that used with the Paper2D Template) any lights that are distant from the world origin will start to fade out as if they are being culled. The distan ...

CPU benchmark value "inf" When using the console command "scalability auto"

UE - Foundation - Core - Nov 9, 2017

When running the console command "scalability auto" on a packaged project, the benchmark for the CPU is returning "inf". Example logs [2017.11.09-14.35.50:583][ 92]LogConsoleResponse: Display: Cu ...

Crash occurs while clicking through the Landscape Overview Tutorial

Tools - Apr 28, 2017

Crash occurs while progressing through the Landscape Overview tutorial, after the step "After pressing the Create Button, your level should now have a Landscape Actor inside of it" This is a regres ...

[Sound Submix] - Dry Level of a Submix is calculated differently whether or not there is an effect in the chain

UE - Audio - Submixes - Jan 21, 2021

There is a discrepancy is how the output volume of a submix is calculated when the effect chain is and is not populated. When there is no effect on the submix, the Dry Level adds additional gain to ...

[GPU Lightmass] bake artifact w/ two actors of same static mesh

UE - Graphics Features - Jun 22, 2022

As per a bug report from Pixomondo: if there are two static meshes in the scene and one has a rotation, it gets a GPULM bake artifact as if it is intersecting with the unrotated version of itself. S ...

FlushPressedKeys doesn't clear EventAccumulators, resulting in stale data

UE - Gameplay - Input - Jan 26, 2024

From the user:  The root of the problem appears to be that KeyState.EventAccumulator still has events stored in the structure for 'LeftAlt'. So, although UPlayerInput::FlushInput is called when the ...

Crash when Applying Hole Material to Imported Tiled Landscape with World Composition

UE - LD & Modeling - Terrain - Landscape - Jun 11, 2015

A crash occurs when importing a tiled landscape, via the 'Levels' window with World Composition enabled, and applying a material to the 'Hole Material' slot. You can also re-apply a default material ...

[CrashReport] Linux crash - FVulkanCommandBufferManager::WaitForCmdBuffer

UE - Graphics Features - Aug 22, 2017

This is a semi-common Linux crash coming out of 4.17.1. It is spread among a few different similar callstack affecting a handful of users. [Link Removed] [Link Removed] [Link Removed] [Link Removed ...

Play Rates are not reverted when HAP Media Plugin is disabled

Media Framework - Nov 11, 2019

Enabling the HAP Media player plugin permanently affects the thinned Play Rates of the Media Player asset. Tested in 4.23.1 (CL - 9631420), 4.24.0 (CL - 10091930), 4.25 (CL - 10091038) ...

Local variables in Blueprint functions don't support default values of Custom Structs

UE - Gameplay - Blueprint - Jun 9, 2015

I make a custom struct and assign default values to it's member floats, etc. When I use that in a Blueprint, the defaults work as expected. However, when I reference it as a local variable in a BP f ...