I'm trying to create a kidney bean shaped sketch that I can cut out of a block. However, the equation I use won't complete the sketch. It always leaves a gap between the start and endpoint.

Even if I try a simple circle in parametric form: xt =sin(t), yt= cos(t),  t1 = 0 and t2 = pi.

Can SW not complete sketches that start and finish with the same endpoint?

Thanks