Unreal Engine Issues

HLOD not working in sublevels in cooked build when Save LODActors to HLODPackages is set to true

Crash when spawning multiple HISM at runtime in a packaged shipping build

When adding multiple Hierarchical Instanced Static Meshes on a loop and packaging the project in Shipping configuration the application crashes due to LowLevelFatalError [Link Removed] [Line: 1431] ...

Persistent level containing sublevels with HLODS invalidate after saving.

Editor crash when delete static mesh actor include in HLOD

Skeletal mesh reduction - Material settings are lost when regenerating the LOD in a mesh with a reduced material section

Following code fixes this issue in FQuadricSkeletalMeshReduction::ReduceSkeletalMesh Section.ChunkedParentSectionIndex = bIsChunkedSection ? CurrentParentSectionIndex : INDEX_NONE; // ...

ProxyLOD plugin generates uninitialized vertices at end of a vertex buffer

ProxyLOD::FQuadricMeshSimplifier::OutputMesh may remove duped verts. The input vertex buffer was resized by numVerts from FQuadricMeshSimplifier before calling OutputMesh. So these behaviors genera ...

Staticmesh "Reimport+LODs" do not recover the material ID for custom LOD

HLOD generation does not respect Custom Primitive Data

HLOD material baking doesn't take into account any custom primitive data set on primitives that contribute to the bake. This was raised in: https://udn.unrealengine.com/questions/574875/proxy-lod- ...

HLOD proxy generation invalidates other clusters

When rebuilding a single HLOD proxy mesh in a world composition level that has many, the other proxy meshes will be marked as unbuilt and removed from the HLOD asset package. ...

Empty Mesh Sections with MergeActors Tool

Map Check will output the following error, which makes no sense: SM_FourCubes_1 - 1 element(s) with zero triangles in static mesh 'SM_FourCubes' ...