Also, when the league is set to show potential ratings only: in the general league reports, under the "League Free Agents Report," on the "Fielding Position Ratings" report page, the position ratings do not show up. (
Example.) On the free agent "Fielding Ratings" report page, the fielding ratings do show up.
For leagues which show actual ratings, on the free agent "Fielding Position Ratings" report page, the position ratings do show.