Update: I never completed the first echo and that’s why the other 2 were locked.
I’ve been blowing through the Fall of the Outcasts timeline, up to 50 corruption and 1 of 3 quest echoes completed. But every final echo branch is now for reseting the timeline’s web of echoes instead of being a shade of corruption. If I reset it, the same thing happens. The icon for the final branch shows a shade when I click on it and I do fight a shade to reset the echoes.
Does this mean I am at the cap of the corruption for this timeline? And that I have to complete the remaining 2 quest echoes to advance to the next one? They are both locked. I don’t know how to unlock them. It says I have completed 472 echoes so I’m not sure what’s going on. That seems like a lot and I’m still in the Fall of the Outcasts timeline with no access to the other ones. The stability number to the right of the quest echo bar at the top shows 500.