Gameobject turned invisible because of fog

Im building a game to an android, and for some reason the “ground” object didn’t render at all.

but after getting at the very end of the level, it finally render itself. I suspect it was because of the fog, because after i turned it off the object became visible again.
im asking is there’s anyway i can make the fog to ignore the “ground” object or atleast make it visible ?

thanks in advance
P.S. another question. in the game view it’s seem to be doing fine, but after i exported it to android the issue started, is there any reason for this ?

Found the solution. you just have to use the linear mode in the fog setting (Lightning tab)

set some setting and it’s as good as the game view. still don’t understand why it’s happening tho