Shader not rendering on mobile.

Unity Engine
1

Hello guys, I have a shader that I wrote and it renders fine on my mac. However when I build my app and run it on mobile, everything in the scene that uses my shader is invisible. Like its not rendering them. What have I done wrong?

Shader "UnlitColor" {
    Properties {
        _Color("Color", Color) = (1,1,1,1)
    }
    SubShader {
        Pass {
            Tags { "LightMode" = "ForwardBase" "Queue" = "Opaque" }
            Cull Off
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #include "UnityCG.cginc"
      
            fixed4 _Color;
            fixed4 _LightColor0;
      
            struct vertexInput {
                fixed4 vertex : POSITION;
                fixed3 normal : NORMAL;
            };
      
            struct vertexOutput {
                fixed4 pos : SV_POSITION;
                fixed4 posWorld : TEXCOORD0;
                fixed3 normalWorld : TEXCOORD1;
            };
      
            vertexOutput vert(vertexInput v){
                vertexOutput o;
          
                o.normalWorld = normalize( mul( fixed4( v.normal, 0.0), _World2Object ).xyz );
                o.posWorld = mul(_Object2World, v.vertex);
                o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
          
                return o;
            }

            fixed4 frag(vertexOutput i) : COLOR {
                fixed3 diffuse = saturate( dot( normalize( i.normalWorld ), normalize(_WorldSpaceLightPos0.xyz)) * 0.5 + 0.5);
                diffuse = _LightColor0.rgb * diffuse.rgb * _Color.rgb;

                return fixed4(diffuse, 1.0);
            }
            ENDCG
        }
    }
}

Note: I added a fallback but that didn’t solve it.

Using a nexus 4

2

Shot in the dark, try changing all your fixed to half.

3

Tried that, didn’t help.

4

Have you tried any other device? and what is the device?

5

I tried an HTC one, don’t know what version but I had the same issue.