Just on the phone with the techs at Tesla, regarding an issue with the Powerwall 2 does not initiate self-power mode anymore. I noticed this issue after the Tuesday 1.9.0 OTA update, and I attempted to switch between Backup only and Self-power to see if it will trigger the change, nothing worked. The tech said it is a known issue that the 1.9.0 update affected some battery's ability to Self-power at night, and there is no timeline for the fix.