... the edit button it turns red and the shape changes. Hi Phil, Don't click on the edit outline... button. If you do that it will cease to be a rounded rectangle and will become a multi-sided polygon. Instead, change the corner dimensions to fit within the overall size. Here you can see that the overall width and depth of the rectangle is 69.8 x 36.8 mm, so clearly corner dimensions of 93.9mm are not going to fit, with the result that it looks like an ellipse: 2_120756_080000000.png You probably want to change the corner size to say 10mm or less. The width and depth of the corners can be set separately, although normally they would both be set the same for a radiused corner. I will look again at how the default sizes for the corners are set when first adding a rounded rectangle. Possibly they should be set as a% of the overall size, not in mm. I think you would find that if you added a much larger one it would look ok. I will write ...