Unreal Engine Issues

Lightmap UV generated on Windows and Mac is not deterministic

Selected tool using ScriptableTool might get closed when selecting an exposed property.

When using a created tool of the ScriptableTool plugin, and setting an InstanceEditable variable, the tool might get close. For this to happen, we need to have a ToolPropertySet attached to the too ...

Fracture Tool - Popup menu for tree items on the Geometry Collection Outliner is missing the option "Static" for setting "Initial Dynamic State"

As reported by the customer in the related UDN case, when right-clicking a tree item on the Geometry Collection Outliner inside the Fracture Tool, the popup menu should display 4 options for setting ...

Editing a specific LOD and then using Remesh causes geometry to disappear

from licensee:"Expected behavior: The LOD selected to be edited should be saved correctly, allowing different remesh results to be saved as different LODs of the same mesh, _i.e. remesh with 1 cm t ...

Materials are added to a Model that has been modified by Cube Grid

This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Changing materials before making a change to a model with cube grid causes that previous selected material to be added to the model ...

Brush Editing: Can't move vertices along local coordinates

Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh

This is a regression tested in //UE4/Release-4.27 CL#18319896 Update Mesh Section incorrectly sets vertex colors for a Procedural Mesh. The closer a colors R, G, or B value is to 1.0 or 0.0 the mor ...

Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 input pin

Geometry Scripting plugin isn't available for 4.27.2, and the behavior is the same 5.0.1. Crash while using Geometry Scripting to add an Array of Vector 2D data to 'Append Buffers to Mesh' node UV0 ...

geometry script AppendSimpleSweptPolygon can crash if called with empty path

geometry script "Append Simple Swept Polygon" crashes if called w/ an empty path (but non-empty cross section polygon) ...

Custom Primitive Data types do not work with Procedural Meshes even though the option exists in their Details Panel

This is a not a regression. Tested in UE5(Binary), UE4(Binary), and UE5 Main(P4). Procedural Meshes have the option for CPDs listed in their details panel under Rendering > Advanced >Custom Primit ...