Kinda sick of waiting and no solution but are the dev's or this arrogant company going to listen to its customers?
vault 81 is a known bug if you don't give them the cores it will not let you in and if you did not know this was going to bug out and you save inside the entrance you will not have a save file to fall back on to give the core to them.
4 patches and no fix just more bugs, and over 100 bug reporting of this from me alone never mind the posts you can find by googling about this bug,
are they going to fix the bug? its not like its hard to fix.
p.s yes i know they don't read these forums or the reddit pages yet its just showing the lack of caring for customers, and they wounder why ESO is near to deaths door.