Lost and found?

So I added the extra sensors yesterday to my pool and water heater on 240v legs.
And really glad for the addition.

So this morning, (not sure if it has anything to do with the above), Sense found new device 4 and suggested with high percentage name suggestion that it was my car EV charger. Which it most likely is. It was 11:30 at night and that’s what my timer for the charger is set for.

Sense found my EV charger several weeks ago, but only recorded two events of it and has been dark for weeks.

Is it possible that it lost the original and now there’s new, or that it is likely just enough of a signature difference this night.?

Should I combine the two?