Unreal Engine Issues

Multi-User - Conflict between two users dragging a selection

During a Multi-User Editing session with two or more team members two or more users can take control of the same actor and move it to different locations in the viewport at the same time. However, ...

Volumetric lightmap + stationary light has missing shadows

Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...

Editor/Details Panel allows duplicate keys in TMap/TSet UPROPERTY()

When edited through the Details Panel in the Editor, TMap and TSet properties should not allow duplicate keys. When those keys are USTRUCTs with the “WithIdenticalViaEquality” trait, this should be ...

Inconsistent behavior with Register State Branches

ISourceControlProvider::RegisterStateBranches(...) doesn't reliably warn on conflicts ISourceControlProvider::RegisterStateBranches(...), specifically FPerforceSourceControlProvider, is supposed to ...

The return value of int64 FMath::RandRange() is biased

Actors in a folder in outliner are moved to the top level by duplicating the world partition level with WorldPartitionRenameDuplicateBuilder

SlateScriptingCommands plugin loads too late to receive MainFrame RegisterCommandList broadcast

This was reported on UDN. TL;DR: A user has reported that a custom command cannot be added to the "MainFrame" context in the UUICommandsScriptingSubsystem from their plugin. The problem seems to b ...

FCollisionProfileNameCustomization doesn't support Multiple Values

The class FcollisionProfileNameCustomization customizes the property editor for the class FcollisionProfileName. However, it does not handle the case where multiple assets/actors are being edited si ...

TitleProperty does not work with VisibleAnywhere properties

In: [Editor\PropertyEditor\Private\PropertyEditorHelpers.cpp:118] function SPropertyValueWidget::ConstructPropertyEditorWidget checks what type of widget to create. In: [Editor\PropertyEditor\ ...

Chorded Trigger evaluation can be evaluated to unexpected results in some specific cases