WebCamTexture not working with Il2CPP on iOS and MacOS

Unity 2021.2.7f. This simple script not executing properly on iOS and Mac builds compiled with IL2CPP. It just shows a grey texture with no errors or warnings. Tested on clean fresh project.

Code (CSharp):

1. public class WebCamTextureTest : MonoBehaviour
2. {
3.     public RawImage RawImage;
4.  
5.     // Start is called before the first frame update
6.     void Start()
7.     {
8.         WebCamTexture t = new WebCamTexture(WebCamTexture.devices.First().name);
9.         t.Play();
10.         RawImage.texture = t;
11.     }
12.  
13.     // Update is called once per frame
14.     void Update()
15.     {
16.        
17.     }
18. }

No issues in Editor. MacOS buit with Mono works fine as well as Windows & Android builds compiled with IL2CPP.

Looks like a bug to me but haven't found anything related to this problem on the forums or issue tracker. Can someone test it out to make sure that this is a common Il2CPP bug?