Stick up camera not detecting motion at night and activating linked light group

I need help troubleshooting my issue. I have a stick up camera installed outside, 7 feet above ground. it's a fairly dark area. It's not seeing human motion and turning on linked lighting group. Settings are... > Detection sensitivity - max > motion snooze - not on > device health - good > smart alerts - on > motion schedules - avoid times - none selected > advanced motion detection - on > lighting group links - on > motion detection/alerts - on > motion zones - set to proper area and within 30 ft > motion frequency - regular > live action pic - does show that body is visible and only 10 ft from camera i have a nearby ring doorbell linked to the same lighting group and it is ID'ing human motion and turning on linked lights. Suggestions? do i have a defective camera? it has successfully turned on the lights intermittently (very rare).  UPDATE 8/2/23.....it worked last night. hate those intermittent failures because you never find out what the real issue was. it was a full moon, so maybe more ambient light helped. i'll just have to keep an eye out on it going forward. ugh....