Hmmm ok. I’ve tried to replicate with a new circle and extruding down -z and all the new ones now output normal outward facing normals. The only way I’ve been able to get red normals on the outside by extruding down on the -z is to flip the circle. It’s a gotcha for me as this just doesn’t happen in C4D. You can find normals reversed but it only really happens as a result of detailed mesh editing and joining edges between separate models
