PWs should not discharge over night unless on self powered. During my initial 7 day learning, I had some unexpected behavior during shoulder, but never during Off PeakBetween the time of the app update 3 or 4 was ago up until my PWs were disconnected last week, I was on TBC and the PWs were only discharging during peak; once peak ended the PWs stopped discharging even if they were well above the reserve, and did not ever discharge outside peak. Since being reconnected on Monday, the PWs start discharging at the beginning of the peak period and have continued to discharge through the night as they never reached the reserve. This is similar to what I was seeing in balanced mode, which I used prior to the app update.
I agree something still seems off based on other strange behavior, but Tesla said they will not do anything until after 7 days on TBC. Will have to see what happens over the next week.