Can't Enter AA II TT Fight?

I meet all the requirements to do the AA fights but can't enter for some reason. I've beaten Divine Might and bought the Phantom Gem of Cowardice KI, and I'm standing at the shimmering circle at home point #3. But when I check it, it says "a mysterious force is sealing the platform." Is that the message for when it's full? Cuz I haven't seen anybody in here and it's been almost an hour.

I think they swapped BCs for Mithra and Taru in the last update, try Home Point 2.

Ahhh, you're right! They switched it. I'll go edit the wiki to reflect that. Thanks!

For those wondering, I think they changed it because of the way the BCs were labeled, as in "Ark Angels (2)" being the fight vs Taru, and yet put his HP as #3. Weird. Don't know why they didn't just change the names of the fights.