Ok, finally got around to upgrading the firmware Richard linked to above. Upgrade process not difficult once you have the laptop tunnjnv the software and you know your USB port number. It’s all in the README file. When I clicked upgrade, the inverter screen displays UPG YES as best it can on the left side. It does go offline so prepare for about a 15 minute offline process. Everything seems normal so far.
. Watching it like a hawk. No overheating issues to deal with, thankfully.
Will post an update later tonight.