LWRP/URP Shader No lighting/shadows

Hi, I'm trying to shade my geometry shader and I'm having issues getting the shadows to display correctly. It seems like they're in the wrong space, but I used

TransformObjectToWorld

so I think it should be correct...

This is my frag function:

Code (CSharp):

1.  
2.             /* ==============================================================
3.                 FRAG
4.             ===============================================================*/
5.          
6.             float4 Frag (g2f input) : SV_Target
7.             {
8.                 UNITY_SETUP_INSTANCE_ID(input);
9.                 float4 col;
10.              
11.                 float4 shadowCoord = TransformWorldToShadowCoord(input.positionWS);
12.                 Light mainLight = GetMainLight(shadowCoord);
13.              
14.                 float shadowValue = SampleScreenSpaceShadowmap(shadowCoord);
15.                 float4 lightValue = float4(mainLight.color, 1.0);
16.              
17.                 col = lerp(
18.                           UNITY_ACCESS_INSTANCED_PROP(UnityPerMaterial, _BottomColor),
19.                           UNITY_ACCESS_INSTANCED_PROP(UnityPerMaterial, _TopColor),
20.                           input.uv.y
21.                           );
22.              
23.                 return col * lightValue * shadowValue;
24.             }

And this is the result:


Anyone have any ideas?