This has happened to me twice already after completing local club season. On Xbox 1 non disc version. Have tried logging out and back in, no luck. Have tried hard restart, no luck, and that erased all my settings when I did.
Also while I'm playing the season,before the save gets corrupted, on the main page my handicap is not listed... It says "Handicap: play 0 more rounds". Not sure if the two issues are related.