Bug tex.ReadPixels only work on button!?

Hi, I have to transform the camera render to a texture2d.

this is the method I use:

Code (CSharp):

1.   public static Texture2D RenderTextureToTexture(RenderTexture rTex)
2.     {
3.         // Remember currently active render texture
4.         RenderTexture currentActiveRT = RenderTexture.active;
5.         //backup
6.         // ReadPixels looks at the active RenderTexture.
7.         RenderTexture.active = rTex;
8.  
9.         // Texture2D tex = new Texture2D(rTex.width, rTex.height, TextureFormat.RGB24, false);
10.         Texture2D tex = new Texture2D(rTex.width, rTex.height, TextureFormat.RGB24, false);
11.      
12.         tex.ReadPixels(new Rect(0, 0, rTex.width, rTex.height), 0, 0);
13.         tex.Apply();
14.  
15.         RenderTexture.active = currentActiveRT;
16.         return tex;
17.     }

On editor all work correctly.

On my quest 2, if I use this function from 3 separate a buttons it work correctly
If I call it from a Corutine the returned texture is wrong....

I also tried waiting more than 30 seconds between each call but I still have the problem...

Any help?

 

Maybe try putting a WaitForEndOfFrame into the coroutine...

 

I also tried waiting more than 30 seconds, and I also tried WaitForEndOfFrame as well...nothing seems to fix it