Somehow, either when I upgraded my LR catalog version, or when I had the new.
"All Photographs" selected, I managed to get all in the catalog assigned a new 5-stars rating. I don't know when that was done, but the immediate catalog earlier catalog version shows the correct ratings for all. Since I have over 100,000 image files from years of using LR and assigning stars, I 'm hoping there is a way to recover those ratings, or maybe export/import from the old to the new. I've made some edits in the new catalog since that happened, otherwise I would just go back to the old and upgrade it again.
Any ideas would be appreciated.