I assumed that OS 6 had the same features in any AW that supported it. However, I have a Series 5 SS AW and my wife has a Series 3 Edition. Both are running OS 6. I have six new watch faces, but my wife has only two, the numerals faces. She is missing the Meridian, California, Modular, Solar, and Gradient faces. Does OS 6 load differently into Apple Watches? Are there differences other than the number of faces?