No Atmospheric Fog on Mobile

Hi,

I have a little problem in my game recently ported on mobile. In all my levels I have an atmospheric fog that renders the sky. The problem is that now on mobile I have no sky but on Windows (for example) or in the editor I see the sky.
I see on another question that adding an Exponential Height Fog can solve the poblem but it do not.

So, how can I solve the problem?

Cheers.

I can render a sky by addin BP_Sky_Sphere in my level.