Unreal Engine Issues
Unreal Engine Issues
Artifacts when using virtual textures for multiple attributes in material layers
UE - Rendering Architecture - Materials - Sep 29, 2022When using the Material Layer system and virtual textures, the number of physical texture samples in the shader increases with the number of material attributes that a virtual texture writes to. The ...
Possession is not replicated properly to some clients
UE - Networking - Nov 8, 2018A user has reported an issue where Possession replication or Character Movement replication, unsure of which, is not working properly for some clients. It seems to work fine for the first client but ...
Hierarchical and normal Instanced Static Mesh Components do not maintain PerInstanceRandom values when transforms are modified
UE - Graphics Features - Nov 6, 2017When using PerInstanceRandom in a material that is applied to a Hierarchical or normal Instanced Static Mesh component, there are issues of the value resetting when certain transform operations are ...
Horde Artifact Browser can produce download URLs greater than 8KB
UE - Foundation - Horde - Storage - Apr 29, 2025Using the Horde Artifact browser browse to a folder with a lot of files in a subfolder (for example temporary artifacts that contains Engine/Binaries/Win64, see attached) and use the "Download" butt ...
Distance Field AO not Rendering in VR
UE - Platform - XR - Mar 24, 2017Distance Field Ambient Occlusion does not render in VR. I mentioned to the user reporting this issue, that using DFAO is more than likely disabled by default due to the baseline cost of using the ' ...
Saving a new material after creating a landscape crashes the editor
UE - Graphics Features - Dec 27, 2016This crash occurs when you create a landscape, then create and save a material. Note The crash does not occur unless a landscape was created first I came across a couple of crashes revolving around ...
Exposed Niagara User Parameter Enums are displayed as Integers
UE - Niagara - Sep 29, 2022(Note: all enums seem to fail when exposed as a user parameter and changing the exposed int does not impact the result of the simulation) Add a rigid mesh collision query di to a scratch module pe ...
GPU crash dump triggered with Intel H/HX processors
TM - Rendering - Oct 3, 2024Some users have recently reported 'GPU crash dump Triggered' crashes launching, importing, or performing simple actions. Communicating with one user, general GPU TS has not helped(check for OS/drive ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Crash when using Property Access node on Animation Blueprint (repro based on Lyra Starter Game animation layers)
UE - Anim - Runtime - Jan 24, 2024When using the Property Access node on Animation Blueprints to gain performance by better exploring parallel processing, it is possible that the underlying accessed property or any intermediate acce ...