Unreal Engine Issues

Moving all the related assets to another folder at once leads to reference lost in the contents browser.

Moving all the related assets into another folder leads to reference lost. This can be tested out using ShooterGame project. Also you can find materials in the skeletal mesh lost its texture. This ...

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 ...

Chaos sometimes can not generate contact points while two dynamic convex hulls actually collide. It results in instability in the contact behavior​ - such as jittering, inconsistent contact forces, or unexpected collision responses.

Context: Chaos Physics is able to use convex hulls to represent object collision geometry for queries and simulation. Problem: Chaos sometimes can not generate contact points while two dynamic conv ...

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. ...

Procedural Mesh Component 'Create StaticMesh' Function corrupts mesh tangents

After clicking 'Create StaticMesh' button on an Procedural Mesh Component, and saving the mesh, the created mesh has bad tangents. Included in the attachments, is a test project with a parallax mate ...

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. ...