Material Editor: Highlight/Isolate should warn user when using Nanite Mesh

UE - Graphics Features - Nanite - Oct 27, 2022

Editor should visually warn the user that this feature doesn't work with Nanite, or that the Nanite Preview mesh needs to be enabled (or forcibly enable it when they attempt to use this option), oth ...

Projectiles transferring additional velocity when stepped on.

UE - Gameplay - Jul 10, 2015

If a player steps on projectiles they have their velocity overridden and are launched away from the projectile. ...

Functions overriden from Parent BPs are not called in Child BPs when nativized

UE - Gameplay - Blueprint - Jul 2, 2018

When nativization is enabled, functions in a child blueprint that were overriden from the parent are not called properly. Regression?: Yes This did not occur in 4.19 ...

Package does not load using Vulkan on Oculus Quest

UE - Platform - XR - Jul 31, 2019

When attempting to open a package using Vulkan, the application is loading and never opens. This happens for Launch On as well. This issue may be related to [Link Removed]. I was not able to reprod ...

Crash on loading pre-4.20 cloth data when compute skin cache is enabled in 4.21

UE - Graphics Features - Mar 19, 2019

According to information from the licensee, the else clause was added to "FSkeletalMeshLODModel::(GetClothMappingData()" at CL 4437969 , but if it is the cloth data existing from 4.20 or earlier, it ...

Normal tangents aren't recalculated on skeletal meshes with bone transforms when recompute tangent is enabled

UE - Graphics Features - Nov 9, 2016

Enabling recompute tangents on a skeletal mesh does not recompute tangent normals for translated parts of the skelmesh. If you addr.SkinCache.CompileShaders=1r.SkinCache.Mode=1r.SkinCache.Recompute ...

Child actor component removed when changing the class of a child actor component

UE - Gameplay - Components - Mar 27, 2017

Child actor component removed when changing the class of a child actor component. Only the default class for the child actor component is used. If the user attempts to change the class the child act ...

Random Stream variables in the GameMode are reset every PIE

UE - Gameplay - Blueprint - Jul 6, 2015

Random Stream variables in the GameMode are reset every PIE. Workaround is to use Set Random Stream Seed before using the Stream value. Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promotable ...

If the game mode is set to game only and "Set Show Mouse Cursor" is set to true some click events appear to get dropped

Tools - Jun 15, 2016

If the game mode is set to game only and "Set Show Mouse Cursor" is set to true some click events appear to get dropped ...

ShowFlag.Rendering 0 is causing picture scintillation

UE - Platform - Mobile - Oct 21, 2016

When you use the console command for ShowFlag.Rendering 0 the screen multiplies. This happens on both iOS and Android devices ...