Unreal Engine Issues
Unreal Engine Issues
Crash caused by a race condition in Nanite::DispatchBasePass()
UE - Rendering - Graphics Features - Nanite - Feb 25, 2026Nanite::BuildShadingCommands() launches two asynchronous tasks: ShadingCommands.SetupTask ShadingCommands.BuildCommandsTask BuildCommandsTask is responsible for modifying ShadingCommands.Commands ...
Dithered LOD transitions sometimes briefly flicker to the next LOD before fading
UE - Rendering - Graphics Features - Jun 12, 2025When dithered LOD transitions occur, a brief flash of the next LOD level is first shown on the entire mesh after which the current LOD fades to the next (or previous) LOD. The flashing behavior only ...
Dithered LOD transitions do not work when the camera's field of view changes
UE - Rendering - Graphics Features - Jun 12, 2025Dithered LOD transitions do not work when changing the camera's field of view and cause artifacts when both the FOV and camera distance to the object are changed simultaneously. ...
A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits
UE - Runtime - Simulation - Jan 20, 2025A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...
Translucent deferred decal materials look different when setting specular attribute directly or via constant node
UE - Rendering - Architecture - Materials - Nov 28, 2025Translucent deferred decal materials look different when setting their specular material attribute directly on the material node versus setting it via a constant node ...
LODbias settings appear to have no effect when specified by GPU on android
UE - Platform - Mobile - Oct 3, 2019When setting the LODbias via the device profile for a specific Android GPU it does not appear to have an affect on the textures when run on the device ...
Motion Matching FPS instability causes jittering when using the root offset node
UE - Characters - Animation - Feb 23, 2026Offset root node is affected by frame rate and produces jitter in it's motion across various settings and styles. ...
Shader Complexity not working correctly on Deferred Decals
UE - Rendering - Graphics Features - Sep 3, 2020If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...
Rigidbody world space simulation overwrites scaling of the skeletal mesh
UE - Runtime - Simulation - Nov 14, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Not a Regression. ...
Changed Constraints do not show up when enabling Show Only Modified Properties
UE - Runtime - Deformable - Nov 16, 2022This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Changed Constraints on a Static Mesh do not show up when enabling Show Only Modified Properties. ...