Same thing happened to me!
Until I checked the payout method and noticed someone hacked into Airbnb and changed the payout method to a PayPal account (not my normal bank account). So without notifying hosts, Airbnb released the payment to the hackers PayPal account. This is why you haven't gotten the money, it has been paid to the hacker's account.
Please check your payout details, take screenshot of the fraudulent payout details, and contact Airbnb. I'm not the only one whose Airbnb account has been hacked. If you search around, quite a few host had their account hacked and payout details changed. I'm attaching screenshots as proof. I have also contacted police to let them know of the fraud.
We need to let Airbnb know this is a widespread problem, not an individual computer that got hacked, and the site is not secure.
Ps. The hacker stole nearly $10,000 from me.
Jen