Android Graphic glitches

I am having some troubles with the graphics in my game on Android . You can see in the first screenshot how it looks on android and in the second how it looks on IOS . Notice the terrain in the back glitches and the depth sorting order errors on platforms or on the character . I have tried playing with different shaders , with the near and far clipping planes of the camera with no luck .

Any ideas?

Check the parts about ZWrite and ZTest. One of your shaders might have a line that says “ZWrite Off” which disables writing to the depth buffer.