GetUniqueBuildID should use GetLocalNetworkVersion for default value

UE - Automation Test - Nov 13, 2018

See https://udn.unrealengine.com/questions/466694/index.html GetUniqueBuildID() was changed in 4.20 so the value returned by default was the same as the network version. However FNetworkVersion::Ge ...

Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled

UE - Graphics Features - Jul 19, 2019

Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled.  Working as expected in 4.22 CL# 7053642 Found in 4.23 Preview 2 CL# 7321677 and 4.24 CL# 7437539 This is a regression   ...

Spline don't deform landscapes in certain setups

UE - LD & Modeling - Terrain - Landscape - Dec 26, 2019

The splines do not deform the landscape when the path is made with a straight spline. When you move a spline point to bend the road it will deform the landscape, but the deformation accuracy seems t ...

Landscape that has tessellation enabled sometimes doesn't render in cooked build

UE - LD & Modeling - Terrain - Landscape - Jun 18, 2020

If a landscape uses a material that has tessellation enabled. Then in Editor and PIE things render correctly. But in a cooked package we sometimes hit this check. check(!bCurrentRequiresAdjacencyI ...

Migrating to a Game Feature plugin can result in assets' losing references

UE - Gameplay - Jun 17, 2022

Migrating to a Game Feature plugin can result in assets' losing references. From User: "Migrating assets to a game feature plugin's content directory leaves them having invalid references, editor t ...

Sandbox Visitors can fail on empty directories on non-Windows platforms

UE - Foundation - Jul 11, 2024

When a Sandbox Visitor checks a directory and it doesn't exist, it returns true on Windows and false on other platforms. The code that uses the result of this check, IterateDirectory, doesn't conti ...

Mesh particles are inadvertently culled when NiagaraActor scales large

UE - Niagara - Feb 5, 2025

When a large scale value (e.g. 500) is set on the NiagaraActor, the mesh particle is unexpectedly hidden. This may be a side effect of the following change ([Link Removed]). PrimitiveData.NonUnifo ...

[AI] Using a Reference Value for scoring in an EQS test produces the opposite effect of its tooltip.

UE - AI - EQS - Sep 23, 2022

An EQS Query scores the tests using reference values opposite of how the comments and tooltips describe. It will score items closest to the referenced value lower than those further away, but the ex ...

LIVE: Deleting a folder in the content brower shows unrealted assets

UE - Editor - Content Pipeline - Content Browser - Aug 25, 2014

User Description: Upon deleting a subfolder in the content browser, your currently open folder displays many objects from other folders as well. Summary: Deleting a folder will cause the content b ...

Modifying a Static Mesh's "Y" Collision Rotation also modifies "X" and "Z" Rotation

UE - Gameplay - Dec 12, 2016

If the user modifies the "Y" Rotation value of a Static Mesh's Collision, the "X" and "Z" values are changed. The values will move +/- 1 point from their value prior to modifying the Y value. This ...