NEW UPS 2, the replacement for the previous replacement ups which I'll henceforth call NEW UPS 1, has died completely, and will not power on.
I left it plugged into a GFCI outlet intentionally to see if it would trip that outlet, and/or how long it would take. It powered itself off yesterday sometime and no longer turns on at all.
APC, you have some serious explaining to do.
I've requested a return label for NEW UPS 2 and will be returning NEW UPS 1 (which does still power on) to Amazon.