Unreal Engine Issues

Cooker: When cooking all maps, all assets are cooked even if not referenced by any level

I noticed that if you cook with -allmaps instead of specifying each map like -map=map1+map2..., that it seems to cook all assets in your game's content folder, whether or not it's used in any maps o ...

Setting location of Child Actor inside of OnConstruct causes the ChildActor to leave behind non-referenced instances

If the ChildActorComponent on a mesh is attached to a component and then has its location set in the OnConstruct function, it'll leave behind non-referenced instances of itself. This is most apparen ...

Using the Replace References Tool on Foliage Types producing Unexpected Results

A licensee is reporting some unexpected behavior when attempting to replace references on Foliage Types already painted in the world. What happens after the references have been replaced, are the n ...

Crash when press F5 key any Test build project

When the F5 key is pressed during the lunch of the application created by Test configuration, the application will crash. This depends on the project. No Crash: Third Person project, ShooterGame ...

Collision lost from body when using world composition and streaming

Physics object from a streamed level does not interact with other physics objects in persistent level. ...

UObject set to DefaultToInstanced will show all properties declared at the blueprint level, even in they're private and not instance editable

Licensee found that when creating a UObject class with DefaultToInstanced and EditInLineNew specified, and then a derived BP was created using the UObject class and used as a variable type in an act ...

xCrash at startup when vcomp140.dll prerequisite is missing.

Some users are experiencing a Crash at startup because of missing vcomp140.dll prerequisite. ...

Crash when changing Twinmotion Cloud and Content library to the same folder.

Reflections of Masked Materials incorrect with Lumen HWRT and Max Refraction Bounces > 0

Lumen HWRT Reflections of Masked Materials are incorrect when "r.Lumen.Reflections.HardwareRayTracing.Translucent.MaxRefractionBounces" is greater than 0. The same issue occurs if the Post-Process V ...

FCameraShakePreviewer retains world-outered UCameraShakeBase instances indefinitely, fataling CheckForWorldGCLeaks on editor map change

FCameraShakePreviewer is an FGCObject that strongly references the UCameraShakeBase instances it previews, and creates them outered to the previewed UWorld. Nothing releases them on world teardown, ...