Treadmill activity is not working properly on my Fenix 7 Solar. I only walk at a constant speed on the treadmill. Unfortunately, the watch often shows that I am standing, the pace is 0. I don't use my watch arm for other things, e.g. drinking, holding on to something.
It seems to me that when the hand is naturally hanging and swaying to the rhythm, then it does not detect movement more often. However, when I bend my elbow so that I have watch in front of me and see the watch, then the measurement is more often correct. But I am not sure about this regularity.
Below is a screenshot of my activity during which I was walking all the time at a speed of 5 km/h (12 mins/km). Where do these drops come from?