Hi Mike,
Yes. As we stated over here, we recently made a change to alert users if there are no machine settings stored in their browser so that they don’t encounter unexpected issues in the carve walkthrough. Since your browser was setup to clear cookies and local storage when exiting, you were always running the walkthrough without your saved settings. If you were using a Z probe or a dust shoe, then you would have kept losing those settings and the walkthrough would not have prompted you to zero using your Z probe or to attach your dust shoe.