Strange image

I’ve just purchased some stick up cams and have been setting them up in various locations, some just to test how they work. I noticed that one camera which was pointing out through a window showed a strange orb like light in one spot during the night. In the daytime it’s still there but as a blue glow. If I move the camera the glow stays in the same place, so I guess it’s not the lens. Other than it being some supernaturally occurrence (lol), I can’t figure it out. Anyone else had the same?