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 camerai 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....