Sense forgot the first device it found

The first device sense found was my well pump, and now it does not recognize it. I am filling a pool, and I guess it changed the frequency of use?

If the pump is running much longer than usual, without a break, Sense could be recognizing the start, but eventually time out and turn off the bubble. That’s Sense’s way of handling situations where it spots the on transition, but misses the off transition, maybe due to other waveforms covering up the off transition, or just not enough training. I see this phenomenon happen with my AC compressor during unseasonably hot weather.