Unreal Engine Issues

Shader Crash with Nanite in UE::RHICore::ValidateStaticUniformBuffer

This appears to be a general crash when a SingleLayerWater material is assigned to a Nanite Mesh. ...

EditorCube added to the scene with a Geometry Script will have reversed normals

The work around is to use the modeling mode normal tool to regenerate normals. This appears to mainly occur on any cubes added by the "Copy Mesh from Static Mesh" Regression tested in 5.0.3 at CL 2 ...

Allow Cinematic Control is reset to true when restarting the editor

When restarting the editor the viewport will have its Allow Cinematic Control flag reset to true. ...

Surface Material's AO will show through a Decal when static lighting is disabled

A surface's Ambient Occlusion will appear through a decal when static lighting is disabled in project settings. Regression tested against //UE5/Release-5.0 CL 20979098 //UE5/Release-5.1 CL 23901901 ...

Creating "Level Sequence with Shot" with spawnable cameras creates duplicate cameras

This is not a regression as it does occur in //UE5/Release-5.1 @ CL 23901901 Repro Rate: 3/3 times ...

Path Tracing shadow artifacts

First picture lit is used [Image Removed] Second picture PT is used, this occurs under certain angles of incidence. [Image Removed] ...

Volume artifacts (Bleeding)

Crash when trimming animation and then undoing action

Repro rate: 3/3 times This is a regression as the issue does not occur in 5.1.1  ...

Visual Noise on Thin Translucent materials with a Directional Light

Regression in testing This occurs with hardware and software ray tracing, as well as moveable and static lights This occurs regardless of anti aliasing. This was tested with DX12 ...

[AI] StateTree can get stuck in a loop when a sub-tree returns Tree Succeeded

After a change to how StateTree handles Sub-trees returning succeeded, StateTree can now get caught in a loop when trying to transition out of the StateTree. Sub-tree completion and status should tr ...