My Tesla Solar & Powerwall+ systems is about 1.5 years old. Lately, I have noticed dramatic drops in solar production as reported by the Tesla app. These drops happened in the middle of the day with full sun (no clouds or shading). I am not seeing any error messages. Tesla support has been nonexistent as of late (perhaps due to the mass layoffs?). I hope the symptom doesn't point to an inverter issue, but any thoughts about what could be wrong?