Could CTs be picking up another circuit?

Just hunting down every last watt of usage and I noticed something funny. I have all breakers in my pool sub-panel tripped, but yet there is still a tiny bit of wattage flowing according to the graph. Anyone have any idea if the CTs could be picking up adjacent circuits?

The blue dashed line is when I flipped the breaker at the sub-panel

That’s just noise. It looks to be about 50mW average and would amount to about 1.2 Wh/day or less than 0.5 kWh per year. Try to ignore it.