Tried new stable 6.48.1 on my hAP ac2 after long-term 6.46.8.
The same situation with new long-term 6.47.9.
I don't like this difference in sector write quantity with the same config.
That's why had to downgraded to the 6.46.8.

Got the same problem with sector writes value on my hAp ac^2 on v6.47.
Two screens just to compare (v6.47 vs v6.46.6). Returned to v6.46.6 until it'll be fixed.