Unreal Engine Issues

Priority order of texture parameters on post process material instances is inverted

The texture parameters on material instances applied to post process volumes do not respect the priority order of the post process volume, and are in fact inverted relative to the priority of other ...

Params in material instance disappear when grouping is changed in material with a material layer

If there is a texture parameter within a specific material attribute stream in the base material and also within the base material layer, they must have the same parameter group otherwise the parame ...

Crash when changing Twinmotion Cloud and Content library to same folder

Recast: FindDistanceToWall can return incorrect results on shared edges with Excluded Nav Area

Context ARecastNavMesh::FindDistanceToWall can be used to find the closest 'wall' on a nav mesh, given a queried position. A wall can be:any boundary towards the end of the nav mesh (outer rectangl ...

Cinematic Prestreaming does not work in Shipping Builds

When the Cinematic Prestreaming plugin is used to generate and cache Virtual Texture Feedback requests, they work when played back in Unreal Editor. A Licensee has reported that they do not improve ...

CableComponent particles spawn at origin when gameplay starts depending on component registration order

A workaround was provided for the user, to use 'Set Attach End to Component' nodes during BeginPlay. While this fixes the issue in gameplay, the editor preview no longer syncs with gameplay. ...

External Data Layers in level not removed when Game Feature Action is Removed or set to None

When using External Data Layers in conjunction with Game Feature Plugins and World Partition levels, removing a Game Feature Action or changing its type to "None" does not remove the associated Exte ...

It is possible for PreLoadScreen to leak memory when an EngineLoadingScreen returns IsDone while still loading

It is possible for a class that implements IPreLoadScreen to leak memory if GetPreLoadScreenType returns EngineLoadingScreen and IsDone returns true before the engine signals loading is completed vi ...

Browsing to a "Packaged Level Actor" does not take to the PackagedLevelActor inside the Content Browser.

There is a bug inside Unreal Editor when selecting "Browse to Asset" for a Packed Level Actor. Right clicking the Packed Level Actor, all the asset options appear. If you click the "Browse to Asse ...

Missing texture assets cause warnings on editor start: LogStreaming: Warning: Failed to read file '../../../Engine/Plugins/Developer/PlasticSourceControl/Resources/Icon128.png' error.

There are a number of missing texture assets which are failing to be read when the editor opens. This is causing a warning to be thrown each time the editor opens, potentially causing CI/CD tests (i ...