I decided to postpone the trip into Fu Syndicate and not going up the elevator after talking to the mandarine on the screen. I rather did all the other quests first.
But now that I ran out of quests and have waited a while - when I get into the building the doors are open and the screen is black, as well as the door to the elevator!
I hear a guard shouts when I get in, and hear footsteps but there are no one there.
It is vital, because you have to rescue the Nosferatu before you can continue with the main quest. Unfortunately, I don't know how you can fix your problem.
Thanks for the answer, but thankfully the last patch helped me out and the doors went open again
The only bug I experienced thereafter was that the blades in room three were not moving, but that only made my progress easier towards my goal!