SDFGI Rendering Errors in Editor with Instanced Light Scenes

[deadpixelsociety]

Godot version

v4.0.beta2.official [f8745f2]

System information

Windows 10, Vulkan, Geforce 2060

Issue description

When adding a child scene that contains an omnilight to a scene with a WorldEnvironment with SDFGI enabled error spam (that does not stop) can happen in the editor.

Sometimes it doesn't trigger the error, sometimes it does, but it is a consistent issue. You may have to play with it, add a light scene, reload the world scene, etc.

Steps to reproduce

1. Create a world made from child scene objects for walls, floors, ceiling, and a light source.
2. Add light source scene to world.
3. Add WorldEnvironment and a new environment.
4. Enable SDFGI.

Minimal reproduction project

GI Error Reproduction.zip

[deadpixelsociety]

I loaded this test project up in Godot 4 Beta 3 to confirm it's still an issue in the new release, and it still happens though the output is slightly different:

[Calinou]

Duplicate of #57840.