The Finals game is locked for me. It says I have to do the Semi-Finals first but I've already done the Semi Finals. The quest line shows that I've done the Semi Finals, and I don't have another copy of the adventure, but I can't do the Finals.
By the way, I play on 2 servers, and I have the same problem on both.
Edit: I went to another island, and when I came back the adventure was unlocked so am not sure what the problem was but glad it fixed itself.