Unreal Engine Issues

Translucent deferred decal materials look different when setting specular attribute directly or via constant node

Translucent deferred decal materials look different when setting their specular material attribute directly on the material node versus setting it via a constant node ...

Morph target normals not correctly applied when imported as LOD 0

This is a regression since 5.5 with skeletal meshes where morph target normal/tangent deformation only works when a mesh is imported as a LOD of an existing skeletal mesh, but not when imported as L ...

Translucent Wireframe Materials Exhibit TSR Aliasing/Crawling Due To Incorrect Velocity Rendering When Set to Output Depth And Velocity

Note that this bug potentially also affects a wide variety of material / geometry setups; however, a translucent wireframe setup is currently the main reproduction case. The issue may also be notice ...

Niagara problem with "Static Mesh Location" module

Control Rig Creation Crash Triggered by “skel” Prefix in Skeletal Mesh Name

When generating a Control Rig from a Skeletal Mesh that contains “skel” in its name—or uses it as a prefix (i.e. skel_test)—Unreal Engine crashes. The crash occurs both when using the native Creat ...

The bake_transform_with_settings method works in 5.6 but not 5.7

Trying to automate the process of baking transforms via python and the identical code above works in 5.6 but not in 5.7. There are no error messages in the output log. When running in 5.7, it does ...

HLOD generation can run out of space in the FName table

A licensee reported that generating the HLOD for his large WP based level is running out of space in the FName string table.  He tracked the source of the problem to CL 47064601. Upon inspection ...

Changing MaterialQualityLevel causes a crash due to a ShaderMap mismatch in UniformExpressionCache

A crash may occur when changing the MaterialQualitylevel via Scalability due to a race condition. The issue occurs because in ScalabilityCVarsSinkCallback(), when it creates the FGlobalComponentRec ...

Dataless Mutable: Cloth Simulation Not Working With Skeletal Mesh Parameter Node?

Testing the new dataless Mutable workflow in Unreal Engine 5.7. When replacing the old Skeletal Mesh node with the new Skeletal Mesh Parameter node, the cloth simulation stops working. ...

Enabling the ScriptableToolsFramework plugin causes compile errors in shipping configurations

Enabling the ScriptableToolsFramework plugin causes compile errors in shipping configurations. This also applies to any plugins which depend on it, such as the ScriptableToolsEditorMode plugin. Thi ...