Unreal Engine Issues
Unreal Engine Issues
Custom node with SceneTextureLookup function doesn't support on Mobile anymore
UE - Platform - Mobile - Sep 3, 2018GameplayTag category filters do not function on BP SET nodes.
UE - Gameplay - Dec 4, 2018BP SET nodes for FGameplayTags do not respect category filters, instead the dropdown shows an unfiltered list of all gameplay tags. Given the MyValue property decorated as follows: UPROPERTY(Edit ...
Light shaft smear color due to TAA bleeding
UE - Graphics Features - Feb 10, 2020See https://udn.unrealengine.com/questions/553031/volumetric-fog-bug.html?childToView=554676#answer-554676 ...
"Primitives with unbuilt interactions" not clearing after lighting scene rebuild
UE - Rendering - Features - Oct 29, 2021Regression No, according to affect version 4.26 and 4.27 [2021.10.29-17.01.06:085][830]Primitives with unbuilt interactions: 6[2021.10.29-17.01.06:085][830] Primitive FoliageInstancedStaticMeshComp ...
Standalone Material Function Instance creation results in crash
UE - Rendering - Architecture - Materials - Mar 2, 2023Coming 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, ...
Sound Attenuation settings do not function when Allow Spatialization is False
UE - Audio - Spatialization - Aug 3, 2023Override Sound Attenuation setting does not work, Sound will play at max volume regardless of distance between source and observer. ...
Add BP function that returns the list of DataLayerInstances in the DataLayerManager
UE - Engine Scaling - Streaming - World Partition - Oct 3, 2023A licensee doesn't have access to all DataLayerInstances of the DL Manager via Blueprint. [Link Removed] ...
Hair Shadows Not Affecting SSS Back Scattering (Subsurface Profile)
UE - Rendering - Features - Mar 30, 2026Groom strands do not appear to correctly block transmitted light for Subsurface Scattering Profile Materials. In some cases, not only will they not block the light, but can instead lead to more ligh ...
Swarm Agent Binaries Missing in Launcher 5.7 Preview
zComponent - Archive - Oct 23, 2025The Swarm binaries are missing from Engine\Binaries\DotNET in the 5.7 Preview launcher version of the engine. This causes any lighting build or precomputed static visibility builds to fails due to t ...
Nanite meshes are lit differently in Actor Colorization view modes than non-Nanite meshes
UE - Rendering - Features - Nanite - Aug 28, 2024When the Lit > Actor Coloration > Affects Navmesh or other Actor Coloration mode is used, Nanite meshes apply lighting differently than non-Nanite meshes which can make it difficult to use the Actor ...