BP - Nativized builds will incur data loss in a Blueprint class that contains more than one ChildActor component and for which each had its child actor class set in the Details tab before being renamed away from "ChildActor" in the component editor tree.

UE - Gameplay - Blueprint - Jan 27, 2020

Child actor component templates, when nativized, end up being owned by the converted Blueprint class object, rather than the child actor component template. Furthermore, we don't regenerate the chil ...

HLOD proxy generation invalidates other clusters

UE - World Creation - Worldbuilding Tools - HLOD - Feb 7, 2020

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. ...

Crash when reimporting staticmesh fail

UE - Editor - Content Pipeline - Import and Export - Feb 12, 2020

When a re import fail, we currently delete the package which in a reimport case produce a crash later. If a reimport fail we should abort and make sure the asset is not touch and exactly like it wa ...

StaticMesh fbx importer test the mesh bounding box using local instead of global

UE - Editor - Content Pipeline - Import and Export - Feb 19, 2020

Skeletal mesh LOD 0 "LOD Info" loose their settings when we reimport

UE - Editor - Content Pipeline - Import and Export - Mar 6, 2020

Set critical because loosing settings is dangerous. This is not a regression, the bug is in 4.22 and earlier version. We have to save all options of the LODInfo, currently nothing is saved. Also sh ...

Property Redirectors do not update the DisplayName of delegate nodes

UE - Gameplay - Blueprint - Mar 19, 2020

This is happening because the property  FText DelegatePropertyDisplayName; on UK2Node_ComponentBoundEvent is serialized, so it does not get properly updated.  ...

Support Landscape Edit Layers in WorldComposition Import/Reimport

UE - LD & Modeling - Terrain - Landscape - May 6, 2020

Allow user to enable layers when importing Landscape Tiles from the Level View in a World Composition Level. Allow to reimport that layer data on a Edit Layer later on when using the reimport featu ...

PropertyAccessUtil methods do not do propagation to instances when editing archetypes

UE - Editor - Workflow Systems - May 14, 2020

Currently value propagation is handled at the property node level (c.f., PropagateContainerPropertyChange), and is unavailable to any other editor code / scripting (whether in Python or BP or C++). ...

Motion blur is not working in split screen multiplayer

UE - Graphics Features - May 19, 2020

Ambient Cubemap is faulty in splitscreen multiplayer

UE - Graphics Features - May 19, 2020