Quote Originally Posted by KeiranOlive View Post
What might have happened is that you retired the chocobo at Rating 40 instead of Rank 40. Your rank is your regular leveling. Your rating determines which races you can compete in and is often much higher than your rank. If you talk to the feathertrader at Benchbranch Meadows you can get another
I did this exact same thing only last week. I thought it was a bug that it wouldn't let me progress after retiring my chocobo ,and I sent in a bug report