Todays fly around, managed to capture a crane lowering Terracing through the existing roof cables.
A couple things you said you weren't sure of, if it helps, and for the benefit of others.
The baigey looking panels you see within the facade buildup are a rigid board insulation. It is not the final finish. The units (that are not glazed) are made of an inner tray which is the silvery surface you see the back of throughout, an insulation board, and an outer tray that will be the finish you see. They can also be done off site and put in place whole, but here they are layering them on site. The glazed panels are just put in whole. I don't see any rhyme or reason to the order they are putting the insulation in, so far seems completely random, but at one point all the solid panels you seen now will get the board put in.
EDIT - seeing it up close in jrb's photos, there are two shades of beige, one is the insulatuon as above, the other in the higher up panels is temporary plywood for protection where the mast climbers are fitted to the building.
The panel with the perforations I think is a sample of what will come in all the horizontals. This is a change from the approval and the mock-up, but the rectangular holes behind it are way too regular not to be that. They are effectively better looking louver panels, and I would think that is the reason they are building them up on site rather than premanufactured, so they can control the cutting out of openings in the trays and insulation. They will be intake/extract to the rooms, which can also run up to the roof instead, but you can see that is not the case up there now that it is built. At some point that will need caught up with an amendment or a change to the mock-up as a condition discharge. Suggests there has been a change to the ventilation strategy too, given it wasn't like that in the mock-up bay.
On the facade side facing the new public square, you can see regular big gaps where nothing has been fitted, and you see concrete structure behind. I am guessing these will be the connection points for the etfe roof trusses, and they will be left like that for some time to allow this at a later time.
Finally someone mentioned the two cranes at the back of the hotel. I had thought one of them was in the position of the glazed rooflight, but they are not. In one of your angles, circa 3.37 into the video, you can see the rooflight opening formed above the main entrance to the right, and the two cranes to the left of it. They will eventually be closed as oer simdog's previous example a couple pages back.