Making a hidden level the current level changes tile position in World Composition

UE - World Creation - Worldbuilding Tools - World Composition - Nov 26, 2020

[Feature Request] Cryptomatte for Foliage

UE - Anim - Sequencer - Jan 25, 2021

Cryptomatte implementation only looks at the HActor hitproxy type which is a different type than ISMs which use HInstancedStaticMeshInstance. ...

[AI] Navigation memory set in NavMeshMemory::ForAnyElementType::ResizeAllocation shows as Untagged in LLM instead of being under Navigation.

UE - AI - Navigation - Sep 27, 2022

Licensee found that memory being allocated during a resize in NavMeshMemory is not being tagged within LLM as NavigationMemory but show in LLM as Untagged memory. They do not have a callstack showca ...

AMD PSO creation causes hang in SceneCapture2D with Nanite + ShowOnly primitives

UE - Graphics Features - Nanite - Jan 16, 2024

AMD RX 6800 XT driver appears to hang (or take a very long time) in the PSO creation of the FInstanceCullVSM_CS shader when using Nanite primitive filtering NOTES:Issue can be worked around by addi ...

Geometry with Static Shadow Invalidation Behaviour being written into invalidated VSM Pages

UE - Graphics Features - Shadows - Jul 17, 2024

Geometry that has its "Shadow Cache Invalidation Behavior" set to "Static" will still draw in the dynamic shadow cache when it is experiencing WPO ...

Crash after generating HLODs for merged meshes that have all triangles culled

UE - World Creation - Worldbuilding Tools - HLOD - Jul 25, 2024

NPC - When an NiagaraParameterCollection asset is duplicated or when its namespace is changed, any existing parameters get incorrectly duplicated/renamed with the addition of the namespace prefix

UE - Niagara - Sep 30, 2024

When an NPC asset is duplicated, the ne wasset gets incorrectly duplicated parameters: one set with the correct names, and one set with the original namespace prefix embedded into the names. These i ...

Substrate SSR reflections are black

UE - Graphics Features - Substrate - Dec 17, 2024

Substrate Materials do not use Screen-Space reflections. Instead, they do not have any reflections (indirect specular) on the surface. ...

FName no longer equals FName_None when constructed with a trailing underscore and digits in range of 1-9

UE - CoreTech - Apr 15, 2025

When an FName is created with a trailing underscore and any number of digits in the range of 1-9 the trailing digits are used as the internal number value for the FName lookup. This results in the F ...

Translucent Materials do not work well with Depth of Field

UE - Graphics Features - Apr 10, 2015

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...