I have a two stage heat pump. Sense detects when the first stage turns on and off.
When the second stage kicks in Sense sees that as Other. When the second stage turns off, Sense see that as the first stage turning off.
This is understandable since the turn off signature looks the same for both compressors.
It would be nice if Sense could realize that stage two is a new device and manages it separately. Maybe Sense already can do this and it is just a matter of more device learning. In that case it will take a while for me to determine this since stage two rarely comes on. If Sense eventually figures this out I will update this comment.