Particle AnimTrails do not render on Android with Mali chipset when using OpenGL ES 3.1

UE - Platform - Mobile - Nov 22, 2016

Particle AnimTrails are not rendering on Mali but will render on the Adreno when using the OpenGL ES 3.1. ES2 renders correctly on both devices, just ES 3.1 does not. The devices compared: Working ...

Crash on reimport animation when there is an additive animation track and fbx frame number is different

OLD - Anim - Feb 14, 2017

When an animation sequence has an additive animation track, reimporting a fbx would crash the editor if the new fbx has a different number of frames. ...

UV Flipping Mode Causes Stretching of Particles

UE - Niagara - Nov 17, 2017

If "UVFlipping Mode" under Rendering on the Required node of an emitter is set to anything other than "None," the particles can become stretched and distorted. As a workaround, I have discovered th ...

Naming CustomEvent string Input "DisplayName" breaks Blueprint Node

UE - Gameplay - Blueprint Editor - Jan 4, 2018

Naming a custom event string input DisplayName will cause the BP Node spawner to use blank or user-entered data for node listing+creation. Additional Notes: This also occurs when renaming the Text ...

Precomputed visibility cells generated from extruded volume is insufficient

UE - Graphics Features - Nov 20, 2017

The questioner of this problem at UDN wants to create a Precomputed Vosability Volume with the deformed volume. When Extruded Precomputed Vosability Volume is used, the cell will not fill this volum ...

"Cast Dynamic Shadow As Masked" is not visible at Material Instance

UE - Graphics Features - Feb 2, 2018

"Cast Dynamic Shadow As Masked" is not visible at Material Instance. There is no property in Material Instance, but it does not work even if Base property is Enable, so it seems like a bug. ...

Unable to create a 'World Soft Object Reference' Variable from the Variables Panel

UE - Framework - Blueprint Editor - Jun 21, 2018

Soft references to World objects (TSoftObjectPtr<UWorld>) cannot be directly created in blueprints. These types work fine in blueprints but cannot be directly created. The reason soft references are ...

Unable to name a component if the name was used on a deleted component

Tools - Jan 29, 2015

When deleted a component in the in world component editor, that name cannot be used for another component until the editor has been restarted. ...

RVT that is set up following the Quick Start Guide shows a flat black texture

UE - Graphics Features - Mar 2, 2021

A user has reported on salesforce that their RVT material is returning black. After following the publicly available Epic Quick Start guide online I encountered the same issue. The ticket was repor ...