Curve Table Editor's "Add Key" functionality does not work and appears to not be implemented..

UE - Editor - Workflow Systems - Aug 5, 2024

Creating a new Curve Table asset, and then trying to use the right-click menu "Add Key" option does not do anything. FRealCurveModel still has the function, but it is left intentionally empty despit ...

Pressing the "Show Inactive" button in the material instance editor did not display groups that did not contain the active parameter

UE - Rendering Architecture - Materials - Aug 1, 2024

When pressing the "Show Inactive" button in the material instance editor, all material parameters are supposed to be displayed in the EditorUI. This is not the case, only some of the parameters are ...

Landscape Import is per-region and does not calculate normals along the borders

UE - Graphics Tools - Terrain - Jul 31, 2024

Seams are found after importing a tiled landscape. ...

'Platform Stats' incorrectly display the number of Texture Calls for a material

UE - Rendering Architecture - Materials - Jul 29, 2024

When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...

Cook Determinism - Construction Scripts and ChildActorComponent issues with DiffCooks

UE - Framework - Components - Jul 26, 2024

To step through the issue, in the -DiffOnly cook add a breakpoint to UChildActorComponent::OnRegister and UChildActorComponent::OnUnregister. It should hit 4 times:Once when LoadPackage loads the ma ...

Outliner freezes when searching in large maps

UE - Editor - Workflow Systems - Jul 24, 2024

This is because SSceneOutliner::FullRefresh is called every time the search text changes, which repopulates the whole tree. There's a few options to look into here (first two might be tricky with b ...

Material not compiling due to WorldAlignedTexture connected to multiply

UE - Rendering Architecture - Materials - Jul 23, 2024

When a WorldAlignedTexture node is connected to multiply and then to a base color output, the material cannot be compiled, giving an error about an undeclared local variable "Local27". Does not happ ...

A crash occurs inside the Unreal Editor when we change the Spline Point type of a spline point, and we subsequently select another spline point

UE - Editor - Workflow Systems - Jul 22, 2024

In versión 5.4, a crash has been found when using splines inside the LevelViewport. This crash occurs when we change the Spline Point Type of a spline point, and subsequently we select another splin ...

Spawnable Post Process Volume does not draw bounded values after saving and reopening a level

UE - CoreTech - Jul 19, 2024

Reproduction Attempts: 3/3 Doing some additional testing for Spawnable Post Process Volumes in a level sequence, the PPV does not appear after saving the level and level sequence, closing and reope ...