SubCategory of UFUNCTION does NOT work properly if using CallInEditor

UE - Framework - Blueprint Editor - Sep 20, 2022

If you use both Category hierarchy and CallInEditor in UFUNCTION, it will result in an unintended sequence as shown below. [Image Removed] And, the following code can solve this issue void FDetai ...

3D Transformation Widget Unusable at Very Large Scales

UE - Editor - Verse Class Editor - Sep 13, 2022

When using a Transformation Widget in a Blueprint, the size of the widget seems to be some kind of product of size in screen space, object scale, and the transform widget scale that makes it much to ...

BP multi-level inheritance does not correctly inherit 'Static' mobility

UE - Framework - Blueprint - Sep 8, 2022

User reported an issue of a mesh not being visible when a project has multi-level blueprint inheritance. After reproing, I believe the root cause is DefaultSceneRoot of the grandchild BP class not c ...

Blueprint functions with nested structs referencing UDataAssets generate errors if root not passed by value.

UE - Framework - Blueprint - Aug 17, 2022

The source of the error appears to be a stray DefaultValue="None" that's contained within the inner "Test_Nested_TestContainer" split pin (copy/paste the node to notepad to see this). If you refresh ...

Copying collapsed graph with a node with a custom Exec pin results in duplicate pin name

UE - Framework - Blueprint Editor - Aug 17, 2022

When duplicating a collapsed blueprint graph which has a node with a custom Exec pin, this results in blueprint compilation error that a duplicate named pin is found. Duplicated exec pins aren't ass ...

Duplicating an actor with a blueprint bound delegate behaves unexpectedly

UE - Framework - Blueprint - Aug 15, 2022

When the trigger is duplicated, the contents of its OnActorBeginOverlap MC delegate are copied, which contains a reference to the BP actor that added the binding to the original trigger. Marking th ...

Physical Material Masks do not work in non-editor builds

UE - Runtime - Simulation - Aug 12, 2022

Physical material masks are not working as expected in cooked builds. Licensee reports that the mask data is empty at runtime. ...

Editor-only blueprints like WidgetBlueprint are not added to cooked asset registry class hierarchy

UE - Core - Systems - Aug 10, 2022

Both the Asset Registry and Asset Manager look for all subclasses of UBlueprintCore and use that to search for blueprint classes and construct an inheritance hierarchy. This always works in editor b ...

Static mesh material slots incorrect when upgrading project from UE4 to UE5

Licensee reporting material slots being incorrectly assigned when loading an asset created in UE4 into UE5 via an upgraded project. ...

Multiplying CompleCollision by inverse scale does not create a collision

UE - Framework - Components - Aug 2, 2022

If multiplying a mesh with ComplexCollision by inverse scale, the geometry may not be created on the mesh. This may depend on the assets of the mesh. In the sample example, the navmesh is not create ...