smart motion detection

Just had new Dahua cameras put in with Dahua NVR. Had it for one week working normal and getting alert notification from MD. Suddenly stopped working today, only captures 24/7 recording no settings changed. The only thing I did was format disc to male more space on harddrive. Other than that...

Has any Blueiris user tinkered with an Amcrest IP5M-1190W camera's Event > Smart Motion Detection? I typically just park this camera in one position and only use PT controls when I am looking at something live but today I had a "visitor" that looked like he was checking out my car to rip it off...