Stockfish can't find checkmate in 9

lichess.org/analysis/3B1B1B/p7/7B/8/7B/8/k1K5/8_w_-_-
It takes Stockfish several minutes to find solution to this one.
Also cloud caching does not seem to work because when I reload the page the search starts from scratch.

Source: www.youtube.com/watch?v=A_iXrxXo1G8

I tested this with fritz 15 comparing stockfish 8 64bit and komodo 10.1 64bit. i5 CPU @ 4.4ghz doing 14,000 kN/s.

I did three runs each and stockfish won easily.

SF8...........1.5, 2, 1.5 seconds
Kom10.....20, 27, 37 s

I see chessbase cloud has this solution since january and it shows immediately.

If I click your link, it wont find mate. If I click the "+" sign that says "go deeper" it finds mate in 15 seconds at 7500 kN/s.

Stockfish 8 64 finished in 4sec (6CPUs)

It finished in 6 sec for me.3 CPU's and 1GB of memory