I am experiencing the same EXACT problem with 3 of my camera. My camera seem to Be set up correctly as well but no person notification. note All cameras have sd card in them. With all other notification off and person detection on I receive notification for everything but person detection.
I would re-check settings by running through this how-to and test Person Detection events in a controlled indoor environment. The person detection service is definitely up running on the Wyze servers and working as I’ve had numerous person events all week on multiple cams.
My person detection works somewhat. It sends notifications, but not always, more like 75% of the time. Sometimes it will also tag cats or cars as people. Hopefully it will be sorted out in the future, not terrible at the moment, but definitely room for improvement IMO.
New user here, and I noticed I was having the same problem. I just followed the article in the link below and it fixed the issue for me! Apparently, there is some sort of issue or conflict when you have Complete Motion Capture service enabled (referenced as CMC in the article. You can disable under “Services”. Hope this helps!