I had drawn it with 0.63 so to try it with a slightly different fillet than the endmill to see if it had an effect. Here is the file with the fillets in 1/16 increments, same result. All the paths are big enough for a 1/8 endmill, which is what I drew this for. I have been playing around with the overhang and finish with no results either, I am not sure what they do...
Charlie