Temporal AA and Motion Blur Does Not Work on Manually Animated Bones

OLD - Anim - Jul 30, 2018

Manually animated bones of skeletal meshes do not correctly work with temporal AA and motion blur even if "Per Bone Motion Blur" is enabled. Found in 4.20 CL# 4233996 and 4.21 CL# 4234136 Unable t ...

Memory Leak In PageAllocator When Packaged

UE - LD & Modeling - Terrain - Landscape - Aug 29, 2018

There is a Memory leak in PageAllocator when packaged. The leak can be stopped if "Landscape.Static" is used in console. Unable to test 4.19 since the provided project was 4.20, but Issue is reporte ...

Importing a Landscape Layer with World Composition Enabled is Taking All Available Memory

UE - LD & Modeling - Terrain - Landscape - Sep 18, 2018

When importing layer information to a landscape the engine will freeze and consume all available memory. Unable to test in 4.19 due to provided project being made in 4.20. I have attached a log from ...

Skeletal Meshes do not work properly on Open GL ES 3.1 on Xiaomi Redmi 6

UE - Platform - Mobile - Oct 30, 2018

Skeletal meshes do not render or animate properly on the Xiaomi Redmi 6 (PowerVR GE8320) when using OpenGL ES3.1. This issue changed a bit from 4.19 to 4.20. In 4.19, the skeletal mesh seems to of ...

Oculus Touch Menu Button Input Not Received When Set In Action Mapping

UE - Platform - XR - Mar 9, 2020

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

Pawns using Floating Pawn Movement will teleport to the location specified in Move To Location

UE - AI - Jul 14, 2015

Pawns using Floating Pawn Movement will teleport to the location specified in Move To Location. From fix CL 2619989: "Fixed FloatingPawnMovement component's issue when controlling AI pawn. Basicall ...

Exposure Bias in Post Processing is blown out for Samsung Note 5

UE - Platform - Mobile - Apr 6, 2016

The post process within the project is causing the light to show up extremely bright on Note 5. This project has been tested on a Nexus 5, Samsung Galaxy S6, and Nexus 5X. Could not repro on: 6713 ...

imageStore no matching overloaded function found error when packaging ContentExamples

UE - Niagara - Jun 26, 2018

The following error appears when packaging ContentExamples for Linux.UATHelper: Packaging (Linux): LogNiagaraShaderCompiler: Warning: (ERROR: 0:377: 'imageStore' : no matching overloaded funct ...

[Groom] Very thin hair has incorrect raytraced shadow on edges

UE - Graphics Features - Lumen - Jun 8, 2020

This only happens when 1) Hair Width is very small. e.g. 0.01 in the example 2) Light has raytraced shadow and Samples Per Pixel has a value > 1. e.g. 8 in the example The problem seems to be rel ...

Key input by Sequencer is missing in FBX output of parent-child actors

UE - Anim - Sequencer - Nov 15, 2021

This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A)   ┗Actor(B)     ┗Actor(C) This is how the attachments are registered, and the ke ...