Keyslinger Trophy help.

[spidey16]

Hello. I started a second playthroug on normal and want to unlock the secret Episode. For that I need the damed keyslinger trophy.
With terra I had killed 5378 unversed.
With ventus I have 4633 killed but havend end the episode yet.
I should have more than enough to get the trophy. But it didn't pop up. Why? Did I have to clear the episode to make it count?

 

[spidey16]

So I have wrecked poor Vantis and it pop up. I hope now I get the secret episode will be unlocked after I finished the final one.