Hey,
I am very new to houdini and I am following the houdini isn't scary tutorial, I have been stuck at part 4 for so many days. At first I was not able to change the position of the environment light which in the tutorial showed it is possible to alter but after few days with the help of chatgpt I came to know that the environment is fixed on the newer versions of houdini and the light spreads evenly. Now I have noticed which I did not notice earlier that the chocolate icing part is missing from the render view and also why the half of the donut is white? I came to know about the sprinkles that are coming as speres in render, for that the dynamic node needs to be turned off (read on the part 4 comments from youtube). I did apply one material on the icing by later deleted the material but still I am facing the same issue.