Hey all, I am going back and replaying all of the Kingdom Hearts games again. So I wanted to unlock the secret ending in every single playable game. I went and beat Birth by Sleep on Critical with every character.

I can't seem to find a definitive answer on this; but what are the requirements for unlocking the secret ending for Critical?

I have seen many sources say just beat the final episode on Critical, and you will unlock the secret ending. However, I beat each story on Critical. First I beat Terra's story; next I beat Ventus' story, and lastly I beat Aqua's story.

I saved the completed save on new files for each. I chose to do save 97 for Terra, 98 for Ventus, and 99 for Aqua.

The secret ending still did not unlock for me. So I beat the final episode again on Aqua's save, and saved that on another earlier slot.

What could I possibly be missing? Are there other requirements for me to unlock the secret ending? Is this a bug?

I am playing on PC, specifically the Steam version.

Any help, or any insight would be wonderful.