The latest update to the Glowforge web app changed something where the height distance is miscalculated. It looks like the autofocus measured height is added to the value you enter for unknown materials resulting in a very poor quality chared cut, and since it’s out of focus, way more power is required and etching is almost 1mm wide. Plus the edge of the cut is angled not straight (huge clue for the problem)
Also, you can’t enter 0 for the hight, which in the past just caused auto focus to just work. Entering 0.01 seems to work