this happened to me too with the last bookings, normally I receive the money on my account two days after the guests have checked in. I think it is because it is July, top month for vacation so more airbnb traffic than usual!
I would not worry for now, just wait a couple days.
It just seems odd, as Airbnb is normally so efficient, and I assumed that because they're dealing with hundreds of thousands of payments on a daily basis the time of year shouldn't matter... but, I'll give it another day and then request a community expert ask Airbnb itself why the payout has not been processed.
I have also noticed payouts getting later and later. I used to always get an email the next morning. Then it went to the very end of the next day after banking had closed obviously to get another day interest now I’m not even getting the next day this is unacceptable holding on to our money whilst we have to wait. I was due a payout yesterday for a long term guest it is now 19.15 the day after payout was due abc still nothing. Air b n b please sort this out some of us do this to pay our mortgage I have been hit with fees so unfair 😫