I'd call and ask. My impression is that the data in the opower-based tools lags by a day or so.
Anyway PG&E doesn't always make rate changes smoothly. When I first switched to EV-A in 2016, some parts of PG&E picked up the new rate plan and some didn't. My next couple of bills were wrong; it took a couple months and some time on the phone with PG&E to correct.
Yep I suppose calling them might not be a bad idea either, thanks!
Bruce.