How to fix "lighting needs to be rebuilt" warning in Unreal Engine 5?

Development Rendering
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1

Hi everyone,

I’m getting the message “Lighting needs to be rebuilt for X objects” in Unreal Engine 5 every time I load my level. I tried building lighting again using the Build button, but the warning still comes back.

  • I’m using Lumen (dynamic lighting)
  • No static lights in the scene
  • Using Nanite meshes
  • Lighting method: Deferred

Is there a way to permanently remove this warning when using dynamic lighting only?

Thanks in advance!

2

Go into the world settings and try ‘force no precomputed lighting’ and see if that does the trick.