Unreal Engine Issues

Default value propagation of instance subobjects doesn't work consistently

EnumRedirections from a Blueprint enum to a c++ enum does not redirect everything correctly.

There is an engine bug when using the EnumRedirects feature inside a config file. If we have a Blueprint Enum used in our blueprints, and we want to convert all the Blueprint enum references to a C+ ...

Physics constraint component doesn't work when placed inside a child actor, while using world partition and streaming is enabled

Context: In a World partition level, to reduce complexity and provide a scalable solution when creating new projects, grid cell streaming can be enabled. Problem: The problem is that physics constr ...

Hardware Lumen Surface Cache Artifacts on Nanite Geometry

When using Hardware Lumen with Nanite-enabled meshes in UE 5.6+, black / dark surface cache artifacts appear that result in generally darker and unstable lighting. These artifacts are not immediatel ...

A replicated Timeline's Finished output does not fire on the Client if the Server changes the Timeline Length to a shorter duration

A replicated Timeline's Finished output does not fire on the Client if the Server changes the Timeline Length to a shorter duration. Test project attached. Reproduced in 4.9.2 binary, 4.10.2 binar ...

Existing widget name error from rejected widget object.

Rejected widget object for paste action from other widget somehow remains in the widget editor making name conflict for other widgets. ...

Improper Rendering of Paper Sprites in Translucent Sort Axis.

Regression as of 4.22. Translucent Depth Sort Policy results in improper rendering ( Z-Fighting flickering) with Paper2D Sprite Components. ...

Instanced EditInlineNew objects are parented to the CDO when used by a child BP of a parent BP that inherits from a native class

EditInlineNew objects added to Instanced array stored in a struct are seemingly ignored and the object is instead parented to the CDO of the owner. The owner must be the BP child of a parent BP tha ...

Reference Viewer doesn't show references to Primary Asset IDs

Context Reference Viewer can be used to view references between assets. There is a setting 'Show Management References' whose tooltip implies that references via PrimaryAssetID should be findable t ...

Crash when a Deferred Decal (Translucent) base material has a Nanite Override (Masked Surface) Material and the mesh has Nanite + Ray Tracing enabled.

A crash occurs when Nanite override material instance is used in a project with Ray tracing enabled where: 1 The Material assigned to the static mesh uses Deferred Decal / Translucent and the Nani ...