Earlier today, I began a clear of Sepulcher on Mythic, killing Guardian of the First Ones and then opening up the skip to Anduin before defeating him. However, I needed to log out on the spot and never used the teleporter to the Grand Design.
When I logged back in, the soft reset instance is no longer letting me fly to Domination’s Grasp, and Bolvar is nowhere to be found to re-activate the skip. If I wanted to go there, I would need to now clear the entire first two-thirds of the raid.