Rendering visual bugs on particular tiles

Hi everyone !
I’m experiencing a weird problem while exporting a night scene.
Here is the render :

Top right corner you can see the pattern that shouldn’t be here. I tried hiding some actors, like HDR, Clouds, even the windmill to see if the issue comes from a cache buffer or something like that, but when I hide actors they are still rendered.

So 2 questions :

  • Do you know how to get rid of this tiling issue ?
  • Is it normal that hidden actors are still rendered ? If not what am I doing wrong ?

Thanks a lot :slight_smile:

Have a great day !

David