Unreal Engine Issues

Dormancy validation log warnings when COND_Never property changes

FRepLayout::DiffProperties doesn't check if the property's conditions is COND_Never or if the Parent Cmd's flags have the ERepParentFlags::IsLifetime flag (which FRepLayout::InitFromClass doesn't se ...

Rect Light Texture does not unload during level streaming in packaged game

Niagara Skeletal Mesh DI Component Tag filter doesn't copy over when copying DI

UNiagaraDataInterfaceSkeletalMesh::CopyToInternal and UNiagaraDataInterfaceSkeletalMesh::Equals do not account for the component tags, so the tags array will be empty when the DI is copied. ...

Cable Actor becoming stiff when bound to two dynamic objects

the cable actor does not dynamically deform when the cable actor's parent mesh moves. Instead, the cable actor becomes rigid between the meshes it's bound between. This bug does not occur in the fo ...

Crash with Ensure when resizing layout

This is a regression as the issue does not occur in //UE5/Release-5.1.1 - CL 23901901 ...

Cannot delete parameters in a Niagara Parameter Collection after resetting the source Material Parameter Collection

Parameters left over from an old source MPC cannot be removed without renaming them first. When debugging in FNiagaraParameterStore::RemoveParameter it seems that the parameter cannot be found in ...

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 ...