Mysterious floating objects

These mysterious floating objects appear at night - always in the same formation.
The frustrating thing is that my V3 picks them up as a person and sets off the siren.
Any ideas?

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Cobweb or spider web in front of the lens. Clean the area and they’ll go away.


Concur. Spiderweb close to the lens.


I live at an intersection with 4-way stop. Headlights refract through strand of web; that is why they are in “formation”. Watch for cars with 4 headlights; particularly the “blue” LED lamps. Web could be a single strand several feet away from camera.

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My v2 does the same with the shadows of a swooping flock of sparrows. Intriguing.