Nanite meshes swap materials during simulation

Quixel - Jun 1, 2021

When enabling nanite on Quixel Bridge assests.  Materials sometimes randomize to other assets in the viewport during simulation or PIE.  This does not occur every time and may take a few tries.   T ...

Playing as Client in the Advanced Vehicle Project reduces maximum speed to 30-40mph and doesn't exceed 3rd gear

UE - Content - Template - Mar 2, 2022

Playing as Client in the Advanced Vehicle Project reduces maximum speed to 30-40mph and doesn't exceed 3rd gear. ...

[MetaSounds] - Browse to Asset button on Wave Player Node does not work

UE - Audio - MetaSounds - Sep 21, 2021

Selecting the Browse button on a Wave Player asset does not load the location of the selected asset for previously saved MetaSounds. Changing the Wave Asset to another Sound Wave and then selecting ...

Volumetric fog flicker side screen

UE - Rendering Architecture - Nov 29, 2023

The flicker is visible in Epic scalability as well, it is just smaller on screen because the fog voxels are smaller (r.VolumetricFog.GridPixelSize). ...

Masked materials on Nanite meshes with multiple material slots causes erroneous cluster culling

UE - Graphics Features - Nanite - May 22, 2024

When a nanite-enabled mesh with multiple material slots has a masked material applied, nanite may erroneously cull clusters that are still visible. ...

In editor, custom primitive data dont work on instance static meshes in bp instance

UE - Framework - Components - Jun 25, 2024

Changes to custom primitive data properties for instanced meshes placed in the editor work in-game but are not otherwise reflected in-editor. ...

Is there a particle smoke that matches the world lighting 100%?

UE - Niagara - Oct 14, 2024

Niagara particle sprites with a Translucent Material are glowing in a completely dark area. This issue is also observed with the deprecated Cascade particles. Particle brightness is also dependent ...

Nanite - Skinned Meshes not working.

UE - Graphics Features - Oct 21, 2024

The Nanite information and views from the Static Mesh Editor are not available to Nanite Skeletal Meshes in the Skeletal Mesh Editor. ...

LevelSequence Editor consumes input, even if the user last focused the Level Viewport

UE - Anim - Sequencer - Nov 27, 2024

LevelSequenceEditor has input priority over the Level viewport and other editor modules even though the Level viewport has been the last one selected. An example would be a cut operation. If you ha ...

Global Invalidation causes CommonAnimatedSwitcher to flicker after animation completes

UE - Editor - UI Systems - UMG - Feb 19, 2025

The common animated switcher will currently flicker for one frame when its transition animation completes if global invalidation is enabled. This appears to be caused by a visibility change (HitTest ...