UE 5.4 - Specular/reflection disappears above 4096 resolution render

UE - Rendering Architecture - Aug 1, 2024

After a viewport is more than 4096 pixels wide, Lumen's specular reflections buffer cuts its width off at 4096 pixels. It appears that the affected buffer is "Lumen.Reflections.ResolvedSpecularIndi ...

Inconsistent events triggered by FlushProcessedKeys during keyboard hold input

UE - Gameplay - Input - Dec 20, 2024

Key repeats from the OS do not affect the EnhancedInput normally, but it causes inconsistent event triggers when FlushProcessedKeys is called with holding a keyboard key down. Removing references t ...

Crash to desktop after creating Level Sequence with Widget Blueprint

Tools - Nov 30, 2019

Newly created Level Sequence assets cant be opened when they have been created via Editor Blueprint Widget. They are created successfully through a button click for instance, but when you try to ope ...

Dragging more than one Texture into the Material Editor causes a crash

UE - Graphics Features - Mar 11, 2020

Importing two or more Textures into the Material Editor results in a crash. This is a regression from 4.24.3 (CL-11590370) as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) and ...

Ensure opening TM-ShaderModels in DirectX10

UE - Graphics Features - Jul 11, 2017

Ensure occurs opening TM-ShaderModels in DirectX10. This does not occur in 4.16.2 ...

Sequencer Playlist - Triggering a playlist will crash every other editor on a Multi-user session

UE - Virtual Production - Tools - Sequence Playlist - Nov 24, 2022

[Link Removed] ...

GetOverlappingComponents does not work on Mobile

UE - Simulation - Physics - Jun 13, 2016

The GetOverlappingComponents node isn't working correctly on mobile devices. It seems like it may only not be registering components that are spawned at runtime, as it does change the number of over ...

Media Player assets do not play in packaged games or in standalone

Tools - Mar 8, 2016

Media Players and their associated textures do not render in standalone game or in a packaged project. Found on: //UE4/Release-4.11 CL-2897738 Checked 4.9.2 Binary from launcher, issue occurs ther ...

Non-overridden BP update for Animation Blueprints not Calling Parent Function.

OLD - Anim - Mar 21, 2016

User in the linked UDN reports that the parent BP update was not being called in an animation blueprint unless they hooked up the parent call. By default this call is greyed out in the graph and sh ...

Motion Blur has noticeable Artifacts when rotating Camera

UE - Graphics Features - Aug 26, 2016

When rotating a camera about an actor the motion blur starts to create blocky/pixelated artifacts around the character in a halo. This can be further exaggerated by moving the actor while rotating t ...