All brushes works as expected untill I load a reference image using spotlight. Then nothing happens at all when I use Clay build up, smooth, polish, standard. A brush that does work is Move but not if I try to use Smooth. So I have to restart the program and not load the ref using spotlight. What am I doing wrong?
Turn off Spotlight Projection in the Brush>Samples sub-palette.
Thanks marcus_civis
That saved me.