I just updated to Vue 4.2 and had a try to import a pz3 into it. It worked just all right, with all the transparencies and the materials (but I did not find how to edit them). 5 minutes to make this picture (OK, it has no artistic value, it's just a try), 5 minutes to render. No problem to stability. A real charm (for the moment : now, on to more complex images...)