How to change Material Property Block for Particle System?

Why does changing Texture of Particle System using Material Property Block changes texture, but Particle System is still emitting old texture?

I try the code in Start, checking in Editor shows new texture, but Particle System still emits old texture. The script works for SpriteRenderer, but not ParticleSystem. I tried to Play/Stop emission - no difference.

Code (CSharp):

1.     ParticleSystemRenderer renderer = gameObject.GetComponent<ParticleSystemRenderer>();
2.     MaterialPropertyBlock materialPropertyBlock = new MaterialPropertyBlock();
3.     renderer.GetPropertyBlock(materialPropertyBlock);
4.     materialPropertyBlock.SetTexture("_MainTex", texture);
5.     renderer.SetPropertyBlock(materialPropertyBlock);

 

I was able to make this work with this script in unity 2019.4.15:

Code (CSharp):

1. using UnityEngine;
2.  
3. [ExecuteAlways]
4. [RequireComponent(typeof(Renderer))]
5. public class PropertyBlockImageSetter : MonoBehaviour {
6.  
7.     public Texture2D texture;
8.  
9.     [SerializeField]
10.     private Renderer rend;
11.  
12.     private MaterialPropertyBlock propertyBlock;
13.  
14.     void Awake() {
15.  
16.         propertyBlock = new MaterialPropertyBlock();
17.  
18.     }
19.  
20.     // Start is called before the first frame update
21.     void Update() {
22.  
23.         rend.GetPropertyBlock(propertyBlock, 0);
24.         propertyBlock.SetTexture("_MainTex", texture);
25.         rend.SetPropertyBlock(propertyBlock, 0);
26.  
27.     }
28.  
29.     private void Reset() {
30.  
31.         if (rend == null) {
32.             rend = GetComponent<Renderer>();
33.         }
34.  
35.     }
36.  
37. }