Why these spots wont go way?

You can use a static skylight… ?

Thanks for your quick response, I will go change it, but with lumen
, so I still need bake light?

You don’t need to bake light.

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I have a similar problem. Surfaces which are getting reflective lights ( no direct light from source ) get these “things”.
I am just trying to remove all reflective materials to figure out if that is the solution.