Unreal Engine Issues

[Audio Analysis][Ensure] - Sound Submix Spectral Analyzer Delegate Throws Ensure when Analysis Started Before the Delegate is Added

Hit the following Ensure when trying to use the Spectrum Analyser. Also hit this in 4.26 so it doesn't appear to be a regression. Occurs with any of the following Band Settings or when creating you ...

Problem importing broken FBX

An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...

BoneAnimationTracks in UAnimDataModel should be transient

Color samples are not displayed when switching to light complexity view.

In other views, such as Shader Complexity, color samples are displayed. ...

RebuildHLOD UAT script doesn't properly handle the -nop4 command line flag

The script performs P4 commands even if -NoP4 was specified. It should properly handle -NoP4 by checking for  if (CommandUtils.P4Enabled) ...

Get Physics Linear Velocity node does not return the correct values in UE5

The Get Physics Linear Velocity node seems to only output a vector of 0.0, 0.0, 0.0 no matter what the velocity of the object it's measuring is.  Tested in //UE4/Release-4.27 @ CL 17735300 and th ...

Crash using D3D raytracing with Support Ray Tracing unchecked static mesh

Static mesh that does not have Support Ray Tracing flag does not have a GeometryRHI object. So it causes a crash in FD3D12RayTracingScene. Excluding instances that do not have a GerometyRHI in FDef ...

A WaterBody blueprint class with an added component will not compile if Blueprint Nativization is enabled

This is Not a regression. Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced When adding a component to a Water Body actor it should ...

Crash when changing the name of a variable within in a struct that's being used by a Control Rig Blueprint

It seems that changing the name of a variable inside a struct that is being used by a Control Rig variable causes a crash. Additionally, after making the change and recompiling the Control Rig bluep ...

Create a high poly version of the base sphere

We have an issue with artefacting of virtual shadow maps on low poly meshes: [Link Removed] We would like to request a higher polygon version of the sphere for UE5's release/starter content, which ...