Unreal Engine Issues

Calling a child's child in a child blueprint from a spawn actor from class node that is being called back to the child causes an error

Calling a child's child in a child blueprint from a spawn actor from class node that is being called back to the child causes an error. Basically, when using the spawn actor node referencing the chi ...

"Play" node does not restart the animation when triggered

"Play" node in the Blueprint Editor does not restart the animation when it is triggered. Problem crops up when somebody wants to replay the animation assigned to the skeletal mesh more than once. ...

Projects that use plugins located outside of either the Engine or Project directories cannot be deployed.

Trying to deploy a project that uses an external plugin (not located in either Engine/Plugins or Project/Plugins) will fail. The error message states that it is looking for the plugin to be located ...

Niagara Particles in Mesh Shape Don't Render in Scene or Editor Preview

Niagara particles aren't rendered in the Niagara Editor Preview or the scene when an emitter is in it. Found in 4.24.1 CL#10756747 Reproduced in 4.25 Main CL#10808197 ...

Actor attached to child actor fails to serialize as part of map

Attaching other actors to a child actor (actor spawned by ChildActorComponent) fails to serialize correctly as part of the map. The attached actor loads as detached and resets its position back to w ...

Changing the value of a parent class variable does not update after hot reload

When the value of a variable defined in a parent class is changed inside of the child class, the value is not updated in a BP of the child after hot reloading. ...

Transforming inherited component in editor will crash

When a component inherited from code is transformed in any way with the viewport controls (arrows, rotation sphere, scale boxes) the editor will crash. Using the value boxes to set the transform do ...

Editor crash after attempting to create layer info in new landscape window

Attempting to create landscape layer info from within the new landscape creation window crashes the editor. Workaround: create the landscape, switch to paint mode, create layer info in paint mode w ...

20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only

User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...

Fix SourceLength to be tangent to spot light axis