Niagara Sim Cache result from 3D Gas is blocky in Windows packaged game

UE - Niagara - Sep 13, 2024

Summary: Cached 3DGas Niagara system appears blocky in packaged game. Brought up by a licensee via UDN: https://udn.unrealengine.com/s/question/0D5QP00000a17A40AI/niagara-fluids-simcache-artefacts- ...

Delay Before Shot Warm Up introduces hitches

UE - Anim - Sequencer - Mar 29, 2019

setting a Delay Before Shot Warm Up can introduce hitches when rendering out a series of frames. ...

Alembic Hair Groom Asset + DoF = artifacts around edges

UE - Graphics Features - Jan 21, 2020

Hair assets show artifacting between strands when used with DoF. Confirmed in MAIN 4.25 @ CL 110623791 ...

Pasting infinite bool section creates multiple sections on a track that does not support multiple rows

UE - Anim - Sequencer - Oct 21, 2022

Tracks that don't support multiple rows, can still have sections pasted on top of each other, which can lead to unexpected results. ...

UMG Animation MPC track cannot preview

UE - Editor - UI Systems - UMG - Jan 23, 2024

The reason should be in FMaterialShader::GetParameterCollectionBuffer , Scene is nullptr and cached value GDefaultMaterialParameterCollectionInstances ** doesn't update. ...

When adding the UIRenderer to the Movie Render Queue, the rendering output is a difference in PIE and MRQ.

UE - Anim - Sequencer - MRQ - Dec 5, 2023

UI rendering in PIE and UIrenderer rendering in MRQ produce different output results. This is because when dealing with fades in the UI, the rendering results should not be different.  Workaround ...

Attempting to Paste Behavior Tree Task with Decorators Pastes to Wrong Location

UE - AI - May 17, 2016

Attempting to paste a task that contains decorators does not paste it near the mouse location, and pastes it off screen instead. Found in 4.11.2 binary. Reproduced in 4.12 Preview 4 binary and Main ...

When disabling material curve in Persona, the viewport will not update correctly until Persona is reopened

OLD - Anim - Oct 5, 2016

In Persona, when disabling a material curve, the viewport will play the curve at the value that it was disabled at, rather than at value 0. The viewport will only show it correctly once Persona is ...

MoviePipeline: Disabling Auto Exposure in Project Settings not respected

UE - Anim - Sequencer - Mar 8, 2021

The high-res tiling method checks for the exposure method specified on the camera, and forces it to Manual exposure if it's not already there. It shouldn't force this if the project settings have al ...