[QUESTION]Sprite not set to Circle

[rsking01]

Hello. I have a problem with setting the sprite to a 2d object (circle). When I put it, it becomes invisible (object). Thus for Image the sprite is put and . What is it connected with?

    private void RequestImage(GameObject obj, Picture picture)
    {
       Dispatcher.RunOnMainThread(() =>
       {
           mgr.RequestSprite(picture, spr =>
           {
               if (obj != null && obj.gameObject != null && obj.gameObject.activeInHierarchy)
                {
                    SpriteRenderer spriteRenderer = obj.GetComponent<SpriteRenderer>();
                    spriteRenderer.sprite = spr;
                }
           });
       });
    }