Scar/Targa quest bug?

I was doing Scar/Targa quests and got to the Merry-go-round quest to kill 200 Galloperas and collect 200 Tail. As I was doing the quest, killing Galloperas wasn't counting towards quest completion, but collecting the tails was. Is this a bug that anyone else has been getting? Is there a fix to it?

 Spoiler

Did you try quitting your party? Re-making your party? Entering then exiting the Cash Shop? Changing channels? Re-logging?

Due to your post being 4 days old, is this still an issue for you?