Bug Graphics.DrawMeshInstanced applies MaterialPropertyBlock incorrectly

Hello Everyone,

DrawMeshInstanced API applies the first element of the MaterialPropertyBlock to all Rendered Entities.
note: im using the URP SimpleLit shader.

here is a simple example:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PropertiesTest : MonoBehaviour
6. {
7.  
8.     public GameObject[] gameObjects;
9.    
10.     Vector4[] m_Float4ArrayBuffer = new Vector4[24];
11.     Matrix4x4[] m_MatricesArray = new Matrix4x4[24];
12.     Color color = Color.green;
13.     Mesh mesh;
14.     Material material;
15.     MaterialPropertyBlock materialPropertyBlock;
16.  
17.     // Start is called before the first frame update
18.     void Start()
19.     {
20.         if (gameObjects.Length == 0)
21.             return;
22.  
23.         var firstElement = gameObjects[0];
24.  
25.         material = firstElement.GetComponent<MeshRenderer>().sharedMaterial;
26.         mesh = firstElement.GetComponent<MeshFilter>().sharedMesh;
27.  
28.         materialPropertyBlock = new MaterialPropertyBlock();
29.  
30.         for (var i=0; i< gameObjects.Length; i++)
31.         {
32.             m_MatricesArray[i] = gameObjects[i].transform.localToWorldMatrix;
33.             m_Float4ArrayBuffer[i] = color;
34.         }
35.  
36.         m_Float4ArrayBuffer[0] = Color.red;
37.         m_Float4ArrayBuffer[5] = Color.blue;
38.  
39.         materialPropertyBlock.SetVectorArray("_BaseColor", m_Float4ArrayBuffer);
40.     }
41.  
42.     // Update is called once per frame
43.     void Update()
44.     {
45.         Graphics.DrawMeshInstanced(mesh, 0,  material, m_MatricesArray, gameObjects.Length, materialPropertyBlock);
46.  
47.     }
48. }
49.  

as you can see i applied different colors at indexes 0 and 5, but everything is rendred with first element Color (Red).