As a 10 year vet this is baffling to me. You have a timeline mission bugged for months, which prevents New Lights from progressing in the game as intended. And to add to that, any player trying to complete their Legend title, cannot do so because of this same bug. I wasn’t able to play much with the seal opened up, and went to finish it out only to discover that you just sit locked in the hub after you clear everything. To the New Lights out there waiting for this to be fixed, I am so sorry that this is your first experiences in the game.