OK. Part of the problem with knowing quite a bit about electronics is that these electronics mfrs always throw an odd-ball perverse curve at you.
They never stop, they continue attempting to outwit us
My apologies to you for doubting.
I can see the possibility with a 4-battery-remote that it's possible that if you put one in wrong it can produce such a result.
It was embarrassing since I’m an erstwhile inventor and writer in the field but in my defense just lately they’ve changed the flashlight battery making both ends look much alike, especially with the AAA
Not so with a 2-battery remote.
Yes, so one might suppose with a zero net voltage
Alas I’ve done much of the former and little of the latter