I have a Gen 1 and Gen 3 battery. If I restart the inverter both batteries appear in the app and portal as primary and secondary, correctly. After 24 hours, the Gen 1 battery disappears and doesn't appear in the app. It still appears to be online and 'working' as expected, but no info showing in the app. All current firmwares and app up to date. I have emailed support, but no reply yet. Anyone else have this problem? Thanks.