Directional Light is affected by culling

Unity Engine
1

v2vs2l

The blocks behind me are being culled and the light is being affected by it.
How can I avoid this?

I’m baking a lightmap and the directional light is real-time.
I’ve tried with baked directional light also, the same problem.

I’m not using some third-party culling system, it’s the built-in one.

2

Any ideas?

  • I’ve tried reloading the program.
  • Deleting all the walls and replacing them with new ones.
  • Baking in different ways.
  • Removed the light and replaced it.