Objects become invisible after building

I am making a game where you are a cube and are dodging obstacles. The problem is that the when I build the game to android the ground object becomes invisible. The game works perfectly in the editor and in standalone build. I have tried deleting the ground and making a whole new one but it still becomes invisible after building. I am using Unity2018.1.3f1

Please help and thanks in advance.

I don’t care if i’m bumping to an old thread. I will answer it anyway !

You’re following brackey tutorial right ? if yes then this might be the answer.
in the fog setting (the lightning tab) change the mode from exponential squared to linear.