Incorrect Shading On Objects Using World Position Offset And Rotate About Axis

When using the rotate about axis node and WPO to move the vertices of an object to always face the player this seems to introduce some shading errors with any light (except skylight).

1. Open attached project
2. Move around the meshes in the scene so that they rotate in place
3. (Optional) rotate the directional light along the z-axis

RESULT
The objects will be lit incorrectly at some angles or cast incorrect self shadows. The effect is more obvious from different directional lighting angles.

EXPECTED
The objects rotate to face the camera and are lit correctly according to the directional light's rotation.

How does TextureRenderTarget2D get TArray<uint8> type data?

Why does the REMOVE method of map container remove elements have memory leaks?

How do I set a material as a post-processing material?

UMG RichText not appear image when packaged

How to delete some elements correctly when deleting an array loop?

Do I need to call Destory method to remove components from Actor when Destory method to remove Actor?

Where can I download the source address of the deployment cotum service associated with the PixelStream plugin?

What is the difference between Camera and CineCamera?

In UE5.4, custom variables in the level blueprint cannot be set to default values, and the eyedropper tool is also unavailable, whereas in UE4.27, these features work normally.

Why does UV setting float2(1,1) display incorrectly in the material's custom node?