Possible Bug? Chocobo Races not counting for Moogle Tomestone challenge?

[zeth07]

So I got the Participate in 3 chocobo races for the Minimog, and after doing 2 of them some of the others for some reason have not counted?

During one of the races the game lagged out pretty bad before it finished but it eventually caught up and went through, I didn't get d/ced or anything.

Then I noticed I didn't get the completion so I figured ok I'll just do another race, and for some reason it didn't count again anyway...

EDIT: I got it to go through with another race but that was still very strange that some of the others didn't count.