Unreal Engine Issues

Crash when editing members of a struct contained within a UObject instanced inside a USceneComponent

When implementing a USceneComponent in C++, one may want to add one or more internal UObjects to hold some data or perform specific tasks (this is also done by several UE built-in components). These ...

[AI] FInstancedStruct is not dupilicated properly if values are different from an Actor's defaults

A licensee reports that the values of an FInstancedStruct do not get properly duplicated if they differ from the default values of the Actor or TArray to which they belong. Possible short-term wo ...

Build All Levels fails with duplicate level instances

Comments created using the C hotkey do not respect colour or location on graph re-open

This issue seems to only occur when using the hotkey to create comments.  Using the r-click menu seems to work as expected. ...

WorldConditions forward declares USmartObjectDefinition without using the class

In WorldConditionsEditor, at least DataRefDetails and DefinitionDetails forward declare USmartObjectDefinition without using the class. The uplugin nor the build.cs does not list SmartObjects as a ...

Branch node outputs cannot be wired to already connected Execute pins on downstream nodes

When attempting to connect the output of a branch node to a downstream node that is already connected to one of the other outputs of the branch, users see a 'cycles are not allowed' message preventi ...

UMG Animation MPC track cannot preview

The reason should be in FMaterialShader::GetParameterCollectionBuffer , Scene is nullptr and cached value GDefaultMaterialParameterCollectionInstances ** doesn't update. ...

Console Variables Editor plugin disables some CVars in Slate

The following console commands do not work when the ConsoleVariablesEditor plugin is enabled.Slate.GameLayer.ViewportSlotVisibleSlate.GameLayer.DebugCanvasVisibleSlate.GameLayer.PlayerCanvasVisibleS ...

Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision

Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...

[AI] Updating an HISM instance transform breaks the navmesh on all of the HISM instances.

Navmesh does not generate correctly around HISM instances when one instance has its transform updated. The most noticeable change is that adjusting the scale of an instance's transform will cause th ...