There is a little issue using the style picker straight from the scrapbook window. (Selecting the style picker before or select the drawing tool- pencil, rectangle, etc tool before)
I had created a scrapbook of components with different hatch fill. If I take the component and drop it to the model, everything works fine but if I take the style picker and apply the style of the scrapbook component to a component of my project,and save it. Next time I open the project, the hatch fill are missing but remains the background/line style.
Maybe a bug??