Local Fog visible in viewport but not rendered

Development Rendering
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Hi there,

I’m not familiar with Unreal rendering yet and don’t understand what’s wrong in my render settings.
I have a Local Fog Volume and a particule system in my scene. I started testing render and they didn’t show up.

I have put my Warm up count to 400 in Anti-aliasing settings so now, my particule appears. But I don’t find why the fog doesn’t.

Note: In scene I used the command r.LocalFogVolume.GlobalStartDistance 20 to make it visible up close. I tried to write it in the Console Variable window as well but it still doesn’t work.

Any help ?