Resolved Surface Shaders Not Rendering on 2D Sprites

For some reason whatever surface shader I write for a 2D sprite just renders as the placeholder magenta color, are there any settings or other weird reasons why my surface shader won't render?



I quite literally copied the Example code from the Unity documentation and it still doesn't seem to be working at all.

Code (CSharp):

1.  
2. Shader "Example/Diffuse Texture" {
3.     Properties{
4.       _MainTex("Texture", 2D) = "white" {}
5.     }
6.         SubShader{
7.           Tags { "RenderType" = "Opaque" }
8.           CGPROGRAM
9.           #pragma surface surf Lambert
10.           struct Input {
11.               float2 uv_MainTex;
12.           };
13.           sampler2D _MainTex;
14.           void surf(Input IN, inout SurfaceOutput o) {
15.               o.Albedo = tex2D(_MainTex, IN.uv_MainTex).rgb;
16.           }
17.           ENDCG
18.     }
19.         Fallback "Diffuse"
20. }

Vertex and fragment shaders seem to be working fine, but don't register lighting effects which are going to be present.

 

Looks like it was because the project I was working on was using URP, which doesn't support using Surface Shaders.