It seems to be... But not sure how it is for everyone else
I've seen mentions of problems starting on Nov 28, but my problems actually started 2 days earlier, on the 26th, so maybe my reporting was fixed 2 days earlier as well? O.o
The whole of KDP reporting went all sorts of wonky on the 26th for me.
In stead of sales, I kept getting 'Free Units-promo' in my month-to-date reports.
I'm not in KDPS, and have no promotions running, or even had a price match on those books.
All 'free units' showed up as sales on my graph in orange, and the whole thing was just a little baffling to say the least.
However, today things seem to have levelled out.
Sales are back to being sales. Free promo units are back to 0, and payment amounts seem to work out to what they should be.