I am based in the UK and the last week or so I also noticed that the paypal payments were coming through a day or so later than they normally do (they usually come in the next morning after a guest checks in).
Not exactly a biggie as such (don’t have any real cash-flow issues either) it was a bit disconcerting to a person like me who tends to envisage the worst case scenarios (Airbnb going into liquidation crossed my mind too, I’ll admit;))…
There was a similar problem in September 2015 which other forum members here will recall… If I remember rightly, it was much worse…
The ‘glitch’ was resolved in the end but not before a journalist for FORBES got involved and did an article on it all 
. Funilly enough, everyone’s payments seemed to come through just after…