New cam captures small moving light spots at night

I installed 3 wired stickup cams yesterday and last night was the first test of motion detection at night. 2 showed no activity but 1 had numerous false detections involving small light points. They look like some kind of reflection.. There was no wind here but they wander around. I have person detection on but that didn't seem to work. Any ideas would be appreciated. Thanks [https://ring.com/share/6809522587444898677 ](https://ring.com/share/6809522587444898677 )