High Precision Tangent Basis & Use Full Precision UVs on Skeletal Meshes reset after reimport

UE - Editor - Content Pipeline - Datasmith - Importer - Sep 17, 2020

Reimporting a skeletal mesh causes "use high precision tangent basis" & "use full precision UVs" to reset and no longer being applied to the mesh. Reported and tested in version 4.25.3(CL 13942748) ...

Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time

UE - Graphics Features - Apr 16, 2021

This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...

Cine Camera Actor drop downs missing from details panel

UE - Editor - May 28, 2021

The Lens, Color Grading, Global Illumination, Reflections, and Rendering Features  sections in the Cine Camera Actor Details panel are missing their drop down buttons. This issue is occurring in // ...

Moving a water body causes engine to drop fps and spike ms

UE - Graphics Tools - Terrain - Water - Apr 26, 2022

Moving a water body lowers performance on the engine. The fps drop from 120 to 30 and ms spike from 8 to 30. This issue occurs in 5.0 Binary and 4.27 Binary on Windows. On Mac, FPS drop and ms spike ...

Renaming an asset set to Sequencer's Payload causes the reference to be removed after restarting the editor.

zComponent - Archive - Sep 29, 2022

Renaming assets set to Sequencer's Payload will resolve the reference after restarting the editor. This is probably due to the fact that FemaleSceneEventPayloadVariable::Value is a String type. This ...

Standalone Material Function Instance creation results in crash

UE - Rendering - Architecture - Materials - Mar 2, 2023

Coming from UDN https://udn.unrealengine.com/s/case/5004z00001mDBzzAAG/material-instance-asset-creation-workflows?fromCase=1 Either standalone MFI creation should work just like MaterialInstances, ...

Adding a water island when substrate is true will flatten the landscape

UE - Rendering - Features - Shading Models - Jul 20, 2023

When a landscape weightmap or heightmap update is required, ALandscape::ResolveLayersTexture is called via the ALandscape::UpdateLayersContent() The problem appears to be that all pixels in the Out ...

Landscape is missing its material when running a packaged project on Linux arm 64

UE - Graphics Tools - Terrain - Landscape - Apr 22, 2024

From licensee: The project contains a small flat terrain with a basic material attached to it - just a single texture sampler connected to the base color output. Also in the project is a skeletal m ...

Skylight Intensity causes brightness discrepancy between the pathtracer and realtime renderers

UE - Rendering - Features - Aug 26, 2024

In a scene without a sky sphere, increasing the skylight intensity will cause the sky to brighten in the pathtracer. Other renderers do not brighten the sky, and the intensity increase is applied on ...

Favorite Levels menu is hidden if Recent Levels menu was cleared

UE - Editor - Aug 23, 2024

This issue is caused by the "File > Favorite Levels" menu only showing up if there are 1 or more recent levels. Once that list is cleared, the "Favorite Levels" menu is never added to the "File" men ...