Main character is locked?

@Jayman0037The lock icon appears on everyone's screens, however like what @OldTreeCreeper had said; if you have the legend unlocked, they are still playable.

The lock icon represents what legend would become unlocked in the coming weeks. The lock also represents what legend challenges are currently out to complete.

Edited: I just finished the Seer challenges, and now the lock icon is a check mark. So, the unlock means the challenges are available to complete, locked means they're not out yet, and a check is completed.