I tried t do the Crux of Stasis Timeline mission for the Triumph. I get inside the building, pass by the glass wall where you see the giant crux, round the corner and then nothing. The way indicator is at the bottom of the stairs around that corner and it does not proceed. I drop down into where the crux is and nothing spawns. It's just a dead area and the way indicator remains up on the top floor where we dropped down from. I can't complete the mission, or the triumph. Anyone else?