Yet another puzzle - this time about the pending rewards

No time to look at this now, but maybe I'll get time later.

What happened between October 25 and October 26?

Source: Daily median of pending_rewarded_vesting_steem from SteemDB (as reported by PowerBI).

I'm curious to see if it jumps back up after 7 days - between Nov. 1 and Nov. 2.

Update: FWIW, it looks similar when I check Min/Max/Average, too...