The Half Wattage issue

It would indeed be very, very weird for those live readings to be incorrect, barring an installation issue like an open CT or Sense being mistakenly installed on a subpanel. I can’t think of any time I’ve ever seen that.

I wouldn’t necessarily assume this. Detection can vary dramatically across homes for various reasons. You’re off to a pretty good start already.

Check out this thread: Device Detection Update: Device Updates! - #31 by RyanAtSense
The only devices that should be getting renamed/autocombined are ones you have not renamed or marked as a “guess.”