According to a new Temporary Certificate of Occupancy from the Department of Buildings, dated 2/6/17 and lasting 90 days, floors 20 through 32 have been added "less hoist for all floors."
I believe that has to do with an exterior hoist used to fix the facade.
No unit above floor 19 has yet been listed for rent. The building has 34 stories, but only 32 (as far as I know) for residential use.
There are 19 outstanding requirements (see right), such as "final plumbing signoff" and "final elevator signoff" to get the full C of O.