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.”