Unreal Engine Issues

Material slot names are lost when merging SkeletalMeshes

When we use the FSkeletalMeshMerge utility, material slot names are lost on the resulting mesh. We should at least transfer the first slot name found for a given material. ...

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

Cloth doesn't unbind when emptying the Mesh Clothing Assets array

It looks like there's a hook missing to unbind the cloths before destruction of the array shown in the Clothing UI. ...

Can't Select Volume Faces in Geometry Edit mode when Allow Translucent Selection and Draw Brush Polys are enabled

See Repro steps. Faces are selectable when either Allow Translucent Selection or Draw Brush Polys is enabled, but not when they are both enabled. ...

Level export to FBX with actor X axis negative scale has issue in 3ds MAX

The fbx exporter set the fbx axis system like 3ds max, so the max importer is not converting the incomming transform. see: ...

Cloth rendering issue on triangles sharing kinematic attachments.

All render vertices on any cloth triangle that contains one or two fixed vertex are set as fixed, whereas this should only be the case if all three vertices were fixed. ...

Camera viewport hotkeys shouldn't affect Sequencer timeline when the viewport is focused

RemoveWindSource modifies game thread array while in a parallel for loop.

FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...

RHILockTexture crash with ray tracing enabled

Looks like it's a resource state tracking assert issue on the resource. ...

Ensure in MovieScenePropertyTrack when packaging